{"id":718116,"date":"2024-05-14T17:22:58","date_gmt":"2024-05-14T11:52:58","guid":{"rendered":"https:\/\/infinitylearn.com\/surge\/?p=718116"},"modified":"2024-05-14T17:22:58","modified_gmt":"2024-05-14T11:52:58","slug":"electric-charges-and-fields-class-12-mcq-with-answers","status":"publish","type":"post","link":"https:\/\/infinitylearn.com\/surge\/mcqs\/class-12-physics-electric-charges-and-fields\/","title":{"rendered":"Electric Charges and Fields Class 12 MCQ with Answers"},"content":{"rendered":"

Physics MCQs for Class 12 Chapter 1:<\/strong> Electric Charges and Fields with Answers are provided in this article. An electric charge generates an electric field, and when it moves, it creates a magnetic field. An electromagnetic field is a combination of these electric and magnetic fields.<\/p>\n

Infinity Learn offers Electric Charges and Fields MCQs<\/strong> with answers from Class 12 Physics Chapter 1: Electric Charges and Fields, following the latest CBSE 12th Physics syllabus 2024-25 and NCERT curriculum. Practicing these chapter-wise MCQs can help students prepare for the CBSE Board exam and aim for higher scores.<\/p>\n

This chapter covers electric charges, Coulomb’s law, electric fields from point charges and dipoles, Gauss’s law, electric potential and capacitance, conductors, insulators, and the capacitance of parallel plate capacitors. Practice these MCQs to ensure the best results.<\/p>\n

Also Check: Electric Charges and Fields Class 12 Notes Chapter 1<\/a><\/strong><\/em><\/p>\n

Class 12 MCQ Chapter 1 Electric Charges and Fields<\/h2>\n

Ques 1. When the separation between two charges increases, the electric potential energy of the charges: <\/strong><\/p>\n

(a) Increases<\/strong><\/p>\n

(b) Decreases<\/strong><\/p>\n

(c) Remains the same<\/strong><\/p>\n

(d) May increase or decrease<\/strong><\/p>\n

Answer: <\/strong>(b) Decreases<\/p>\n

Ques 2. An electric dipole is placed in a uniform electric field. The net electric force on the dipole:<\/strong><\/p>\n

(a) Is always zero <\/strong><\/p>\n

(b) Depends on the orientation<\/strong><\/p>\n

(c) Depends on the dipole moment<\/strong><\/p>\n

(d) Is always finite but not zero<\/strong><\/p>\n

Answer: <\/strong>(a) Is always zero<\/p>\n

Ques 3. Which gives information on field strength, direction, and nature of the charge? <\/strong><\/p>\n

(a) Electric potential <\/strong><\/p>\n

(b) Electric flux <\/strong><\/p>\n

(c) Electric field <\/strong><\/p>\n

(d) Electric current<\/strong><\/p>\n

Answer:<\/strong>(c) Electric field<\/p>\n

Ques 4. If a body is charged by rubbing it, its weight: <\/strong><\/p>\n

(a) Always decreases slightly <\/strong><\/p>\n

(b) Always increases slightly <\/strong><\/p>\n

(c) May increase or decrease slightly <\/strong><\/p>\n

(d) No change in weight<\/strong><\/p>\n

Answer: <\/strong>(c) May increase or decrease slightly<\/p>\n

Ques 5. When charged bodies are very small compared to the distances between them, they are treated as: <\/strong><\/p>\n

(a) Zero charges <\/strong><\/p>\n

(b) Point charges <\/strong><\/p>\n

(c) Single charge <\/strong><\/p>\n

(d) No charges<\/strong><\/p>\n

Answer: <\/strong>(b) Point charges<\/p>\n

Ques 6. If the position of the charge inside a closed surface changes, but the total charge remains constant, the total normal electric flux through the surface will: <\/strong><\/p>\n

(a) Increase <\/strong><\/p>\n

(b) Decrease <\/strong><\/p>\n

(c) Change erratically <\/strong><\/p>\n

(d) Remain unchanged<\/strong><\/p>\n

Answer: <\/strong>(d) Remain unchanged<\/p>\n

Ques 7. Force per unit charge is called: <\/strong><\/p>\n

(a) Electric current <\/strong><\/p>\n

(b) Electric flux <\/strong><\/p>\n

(c) Electric field<\/strong><\/p>\n

(d) Electric potential<\/strong><\/p>\n

Answer:<\/strong> (c) Electric field<\/p>\n

Also Check: NCERT Solutions for Class 12 Physics Chapter 1 Electric Charges and Fields<\/a><\/strong><\/em><\/p>\n

Ques 8. When a glass rod is rubbed with silk, it: <\/strong><\/p>\n

(a) Gains protons from silk <\/strong><\/p>\n

(b) Gains electrons from silk <\/strong><\/p>\n

(c) Gives electrons to silk <\/strong><\/p>\n

(d) Gives protons to silk<\/strong><\/p>\n

Answer:<\/strong> (a) Gains protons from silk<\/p>\n

Ques 9. Compared to the electrostatic force between two electrons, the electrostatic force between two protons is: <\/strong><\/p>\n

(a) Greater <\/strong><\/p>\n

(b) Smaller <\/strong><\/p>\n

(c) Zero <\/strong><\/p>\n

(d) Same<\/strong><\/p>\n

Answer: <\/strong>(d) Same<\/p>\n

Ques 10. The quantisation of charge means that: <\/strong><\/p>\n

(a) A fraction of the charge on an electron is not possible <\/strong><\/p>\n

(b) A charge cannot be destroyed<\/strong><\/p>\n

(c) Charge exists on particles <\/strong><\/p>\n

(d) There is a minimum permissible charge on a particle<\/strong><\/p>\n

Answer: <\/strong>(a) A fraction of the charge on an electron is not possible<\/p>\n

Ques 11. An electron is placed in an electric field of intensity <\/strong><\/p>\n1<\/mn>0<\/mn>4<\/mn><\/msup><\/mrow><\/semantics><\/math>\n

Newton per Coulomb. The electric force acting on the electron is:<\/p>\n

(a) <\/strong><\/p>\n0.625<\/mn>\u00d7<\/mo>1<\/mn>0<\/mn>13 <\/mn><\/msup><\/mrow><\/semantics><\/math>\n

Newton<\/p>\n

(b) <\/strong><\/p>\n0.625<\/mn>\u00d7<\/mo>1<\/mn>0<\/mn>\u2212<\/mo>15 <\/mn><\/mrow><\/msup><\/mrow><\/semantics><\/math>\n

Newton<\/p>\n

(c) <\/strong><\/p>\n1.6<\/mn>\u00d7<\/mo>1<\/mn>0<\/mn>15 <\/mn><\/msup><\/mrow><\/semantics><\/math>\n

Newton<\/p>\n

(d) <\/strong><\/p>\n1.6<\/mn>\u00d7<\/mo>1<\/mn>0<\/mn>\u2212<\/mo>15 <\/mn><\/mrow><\/msup><\/mrow><\/semantics><\/math>\n

Newton<\/p>\n

Answer: (d) <\/strong><\/p>\n1<\/mn><\/mrow><\/semantics><\/math>\n.6 <\/mn><\/mrow><\/semantics><\/math>\n\u00d7<\/mo>1<\/mn>0<\/mn>\u2212<\/mo>15<\/mn><\/mrow><\/msup><\/mrow><\/semantics><\/math>\n

Explanation:<\/strong> Given<\/p>\n\ud835\udc38<\/mi>=<\/mo>1<\/mn>0<\/mn>4 <\/mn><\/msup><\/mrow><\/semantics><\/math>\n

N\/C and <\/p>\n\ud835\udc5e<\/mi>=<\/mo>1.6<\/mn>\u00d7<\/mo>1<\/mn>0<\/mn>\u2212<\/mo>19<\/mn><\/mrow><\/msup><\/mrow><\/semantics><\/math>\n

F<\/span>=<\/span><\/span>q<\/span>\u22c5<\/span><\/span>E<\/span><\/span><\/span><\/p>\n<\/mi><\/mrow><\/semantics><\/math>\n

F<\/span>=<\/span><\/span>(<\/span>1.6<\/span>\u00d7<\/span><\/span>1<\/span>0\u221219<\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span>)<\/span>\u00d7<\/span><\/span>1<\/span>04<\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><\/span><\/p>\n

F<\/span>=<\/span><\/span>1.6<\/span>\u00d7<\/span><\/span>1<\/span>0\u221215<\/span><\/span><\/span><\/span><\/span><\/span><\/sup><\/span><\/span><\/span><\/span><\/span> Newton<\/p>\n

Ques 12. Force per unit charge is known as: <\/strong><\/p>\n

(a) Electric field <\/strong><\/p>\n

(b) Current <\/strong><\/p>\n

(c) Electric flux<\/strong><\/p>\n

(d) Electric potential<\/strong><\/p>\n

Answer: <\/strong>(a) Electric field<\/p>\n

Explanation:<\/strong> The electric field is the space around a charged particle where other charges experience a force. It is denoted by <\/p>\n\ud835\udc38<\/mi><\/mrow><\/semantics><\/math>\n

E<\/span><\/span><\/span> and is measured in N\/C. The electric field is defined as the force per unit charge (<\/p>\n\ud835\udc38<\/mi>=<\/mo>\ud835\udc39<\/mi>\/<\/mi>\ud835\udc5e<\/mi><\/mrow><\/semantics><\/math>\n

Ques 13. Which of the following is false about electrostatic field lines? (a) Field lines start from positive charges and end at negative charges. (b) If there is a single positive charge, field lines will end at infinity. (c) Two field lines can never cross each other. (d) Electrostatic field lines form closed loops.<\/strong><\/p>\n

Answer: <\/strong>(d) Electrostatic field lines form closed loops<\/p>\n

Explanation:<\/strong> Electric field lines start from positive charges and end at negative charges or go to infinity if isolated. They never cross each other and do not form closed loops. The density of these lines indicates the strength of the electric field.<\/p>\n

Also Check: NCERT Exemplar Solutions for Class 12 Physics Chapter 1 Electric Charges and Fields<\/a><\/strong><\/em><\/p>\n

Ques 14. The magnitude of the electric force experienced by a charged particle in an electric field depends on: (a) Charge of the particle (b) Velocity of the particle (c) Direction of the electric field (d) Mass of the particle<\/strong><\/p>\n

Answer: <\/strong>(a) Charge of the particle<\/p>\n

Explanation:<\/strong> In an electric field, the force on a charged particle is given by<\/p>\n\ud835\udc39<\/mi>=<\/mo>\ud835\udc5e<\/mi>\u22c5<\/mo>\ud835\udc38<\/mi><\/mrow><\/semantics><\/math>\n

F<\/span>=<\/span><\/span>q<\/span>\u22c5<\/span><\/span>E<\/span><\/span><\/span>.<\/p>\n

The force depends on the magnitude of the charge on the particle.<\/p>\n

Ques 15. An electric charge enters an electric field region along the direction of the electric field. The path of the particle’s motion will be: (a) Parabola (b) Circular (c) Straight line (d) None of the above<\/strong><\/p>\n

Answer: <\/strong>(c) Straight line<\/p>\n

Explanation:<\/strong> When a charged particle enters an electric field in the direction of the field, it experiences a force in the same direction and moves in a straight line. If the charge is negative, the force is in the opposite direction.<\/p>\n","protected":false},"excerpt":{"rendered":"

Physics MCQs for Class 12 Chapter 1: Electric Charges and Fields with Answers are provided in this article. An electric […]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_yoast_wpseo_focuskw":"Electric Charges and Fields Class 12 MCQ","_yoast_wpseo_title":"Electric Charges and Fields Class 12 MCQ with Answers | Infinity Learn","_yoast_wpseo_metadesc":"Find Electric Charges and Fields Class 12 MCQs with answers as per the latest CBSE syllabus 2024-25. Boost your exam preparation with these curated questions.","custom_permalink":"mcqs\/class-12-physics-electric-charges-and-fields\/"},"categories":[11038],"tags":[],"table_tags":[],"acf":[],"yoast_head":"\nElectric Charges and Fields Class 12 MCQ with Answers | Infinity Learn<\/title>\n<meta name=\"description\" content=\"Find Electric Charges and Fields Class 12 MCQs with answers as per the latest CBSE syllabus 2024-25. 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