Physics Questions Practice Question and Answer
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Q: Transformer works on which principle?
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5f17e87179d4dd4986ec2bcf- 1Magnetismfalse
- 2Mutual inductiontrue
- 3Self inductionfalse
- 4Stimulatefalse
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Answer : 2. "Mutual induction"
Q: The process of transferring of charge from a charged object to the earth is called ______________.
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5f17e1a49679b57327a85953- 1Neutralizationfalse
- 2Negationfalse
- 3Earthingtrue
- 4Terraformingfalse
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Answer : 3. "Earthing"
Q: Transformer is used for -
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5f15591e4cff381d162671e4- 1To step up DC voltagefalse
- 2To step up or step-down AC voltagestrue
- 3Converting AC into Dcfalse
- 4Converting DC into ACfalse
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Answer : 2. "To step up or step-down AC voltages"
Q: Which one of the following SI unit is not correctly matched?
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5f155170eddbc50839d4bfb1- 1Mass-Kgfalse
- 2Pressure–Dynetrue
- 3Work-Joulefalse
- 4Force-Newtonfalse
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Answer : 2. "Pressure–Dyne"
Q: Principle of fuse is –
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5f1550ae4cff381d16263083- 1Heating effect of electricitytrue
- 2Magnetic effect of electricityfalse
- 3Chemical effect of electricityfalse
- 4Mechanical effect of electricityfalse
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Answer : 1. "Heating effect of electricity "
Q: The velocity of sound in air is approx.
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5f0ff47c4e2c7631e439119f- 1340 m / sfalse
- 2330 m / strue
- 3110 m / sfalse
- 4232 m / sfalse
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Answer : 2. "330 m / s"
Q: Ice is packed in sawdust because___
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5f0fe439c06d532785e20384- 1Sawdust does not stick to the icefalse
- 2Sawdust will not get melt easilyfalse
- 3Sawdust is a good conductor of heatfalse
- 4Sawdust is a poor conductor of heattrue
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Answer : 4. "Sawdust is a poor conductor of heat"
Q: Who invented electromagnetic theory?
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5f06f28a3f7f070477964316- 1Thomas Alva additionfalse
- 2J. J. Thomsonfalse
- 3Michael Faradaytrue
- 4None of thesefalse
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Answer : 3. "Michael Faraday "
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