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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-8 section-3

Each section contains 100 MCQs on Electricity and Magnetism .
71
Lenz's Law is consequence of the law of conservative of
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Answer & Solution
Answer: Option D
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72
Which of the following option represents the consumption of power in ascending order?
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Answer: Option C
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73
Two wires are made having same length l and area of cross-section A. Wire 1 is made of copper and wire 2 is made of aluminium. It is given that the electrical conductivity of copper is more than that of aluminium. In this context, which one of the following statements is correct?
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Answer: Option B
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74
A positively charged particle projected towards West is deflected towards North by a magnetic field. What is the direction of magnetic field?
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Answer: Option D
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75
If the potential difference between the terminals of the electric heater is 60 V, when it receives a current of 4A from the source. If the potential difference increases to 150V, what will be the current received by the heater?
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Answer: Option C
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76
If the electric charge (Q) and time (t) are given, what would be the formula for determining the electric current (I)?
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Answer: Option A
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77
The work done is 36J across two points which have potential different of 12V. The electric charge flowing across those points is . . . . . . . .
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Answer: Option C
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78
Which of the following law is related to the heating effect of electric current?
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Answer: Option D
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79
An electric bulb of 100 watt is used for 4 hours. The unit of electric energy used is
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Answer: Option D
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80
How much work is done in moving a charge of 4 C across two points having a potential difference of 11V?
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Answer: Option C
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