Questions
A combination of capacitors is set up as shown in the figure. The magnitude of the electric field due to a point charge Q(having a charge equal to the sum of the charges on the 4F and 9F capacitors), at a point distance 30m from it, would equal :
detailed solution
Correct option is B
Q1=24μCQ2=18μC Q3=42μC=Q1+Q2 E=107×42×10−6 E=kqr2 E=420N/CTalk to our academic expert!
Similar Questions
Two identical metal plates are given positive charges Q1 and Q2 (<Q1) respectively. If they are now brought close together to form a parallel plate capacitor with capacitance C, the potential difference between them is
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