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Electricity and Magnetism MCQ question and answer with solution | Physics Gk MCQs

Learn Electricity and Magnetism MCQ Questions and answers with easy and logical explanations in Physics Gk . Electricity and Magnetism MCQ question provides all type of technical mcq questions which is important for SSC-CGL, UPPSC, NDA, CDS and all govt examinations Page-6 section-4

Each section contains 100 MCQs on Electricity and Magnetism .
51
A wire has the resistance 9Ω. Its radius becomes double then the new value of resistance of the wire is :
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Answer & Solution
Answer: Option C
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52
When two resistors are connected in parallel, have . . . . . . . .
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Answer: Option B
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53
A conductor having some appreciable resistance is called a
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Answer: Option C
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54
Wheatstone bridge is used for measurement of-
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Answer: Option D
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55
. . . . . . . . are also known as heat waves.
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Answer: Option A
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56
Which of the following devices converts chemical energy into electrical energy?
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Answer: Option D
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57
A 100 W electric bulb is used for 10 h/day. How many units of energy are consumed in 30 days?
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Answer: Option C
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58
$$R = \frac{{{R_1}{R_2}}}{{{R_1} + {R_2}}}$$  the formula represent?
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Answer: Option B
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59
The dynamo converts
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Answer: Option A
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60
If the resistance is reduced to half, the current . . . . . . . .
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Answer: Option A
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