NCERT Exemplar Solutions for Class 12 Physics Chapter 7 Alternating Current

# NCERT Exemplar Solutions for Class 12 Physics Chapter 7 Alternating Current

Subject specialists have created NCERT Exemplar Solutions for Class 12 Physics Chapter 7 Alternating Current, which includes thorough solutions for reference. All of the unsolved questions from the textbook’s exercises are answered here. The NCERT Exemplar Solutions for Class 12 provide useful solutions for improving conceptual knowledge and help in entrance examinations like JEE mains and NEET.

The solutions are carefully solved using student-friendly terms while still adhering to the norms that must be followed when solving NCERT Exemplar Solutions for Class 12. Practising these answers can be incredibly advantageous not only in terms of exams but also in terms of helping Class 11 pupils perform well in upcoming competitive exams.

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The approaches for answering have been given special consideration to stay on target while not deviating from the intended answer. Because time is so important in exams, excellent time management when answering questions is essential for getting the best results.

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Alternating Current is a vital chapter in Class 12 Physics’ Unit-Electromagnetic Induction and Alternating Currents, and it is classified as a term – I in the CBSE Syllabus for 2021-22. This chapter must be well-understood by students in order to achieve excellent results on their first-term exams. NCERT Exemplar Solutions for Class 12 are also one of the most useful resources for preparing for Class 12 Physics.

### Some key points Alternating Current are given below:

• When a value for AC voltage or current is stated, it is usually the RMS value.
• In ac circuits, an element’s power rating refers to its average power rating.
• In an AC circuit, pure capacitances and pure inductances do not cause any power losses.
• An AC circuit’s power consumption is never negative.
• A step-up transformer converts a low voltage to a high voltage.
• The power factor of an RLC circuit indicates how near the circuit is to achieving maximal power expansion.
• When adding voltages across distinct elements in an AC circuit, it’s important to pay attention to their phases.

The Central Board of Secondary Education is the country’s most popular educational board. Class 10 and Class 12 term-wise examinations are conducted by the CBSE using the most recent curriculum (2021-22). The NCERT Exemplar Solutions are written by subject specialists and are based on the most recent CBSE Physics Syllabus. This allows students to grasp the topics more effectively.

Our professionals provide the NCERT Exemplar Solutions and instructions needed to pass the Class 12 term-by-term examination. Our subject specialists provide you with timely feedback once you submit each assignment, in addition to study materials.

### Q. Is the NCERT Exemplar Solutions for Class 12 Physics Chapter 7 helpful for the students?

Ans: The NCERT Exemplar Solutions for Class 12 Physics Chapter 7 provide precise explanations in easy language to assist students in performing well on their first-term exams. The step-by-step manner of completing questions gives pupils a clear notion of the marks weighting according to the CBSE term – I Syllabus. Students will be able to identify their areas of weakness and try to improve them in order to improve their academic performance.

### Q. Define transformers according to NCERT Exemplar Solutions for Class 12 Physics Chapter 7.

Ans: In the most basic sense, a transformer is something that converts. When we look at it more closely and in relation to electric current, however, it is defined as a static device that adjusts the voltage level between circuits. The transformer is a voltage control device that is commonly utilized in alternating current power distribution and transmission.

Q. Why Opt for Infinity Learn?

Ans: In this chapter, Infinity Learn provides videos, notes, NCERT textbook solutions, other practice book solutions and assignments that help you learn the concepts and to memorise the concepts for entrance exams and board exams. Most important, Infinity learn provide instant doubt support by subject experts.

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