Q321
Open questionWho discovered the relation between Potential difference (V) and Electric current (I)?
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Physics GK · all questionsElectricity and Magnetism
Electricity and Magnetism
practice.
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Q322
Open questionThe inverse of resistivity is called.
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Q323
Open questionA person has five resistances, each of which has a value of . Find the value of maximum resistance obtained by adding them.
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Q324
Open questionThe resistance of a metallic wire is
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Q325
Open questionA family consumes 320 units of energy in a month. How much is this energy in joules?
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Q326
Open questionAssertion (A) It is not necessary that every bar magnet has one North Pole and one South Pole.
Reason (R) Magnetic poles occur in pair.
Reason (R) Magnetic poles occur in pair.
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Q327
Open questionThe frequency of direct current . . . . . . . .
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Q328
Open questionWhat is the rate of electrical work or the rate of expenditure of electric energy?
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Q329
Open questionWhich of the following tips helps to maintain the potential of the conductor?
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Q330
Open questionFaraday's Law of electrolysis are related to
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Q331
Open questionAn electric iron of 1250 W is used 3 h per day. The amount of energy used by that electric iron in a day will be . . . . . . . . . units.
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Q332
Open questionA compass needle cannot be used to detect
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Q333
Open questionWhen two or more cells are connected to each other by opposite terminals, then it is called as . . . . . . . .
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Q334
Open questionIf potential difference and current flowing through a wire is increased twice each, then electric power
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Q335
Open questionA current of 0.5 A flowing through resistance of 10 Ω. The amount of electric charge that flows through this resistance in one minute will be-
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Q336
Open questionWhich of the following is proportional to the potential difference?
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Q337
Open questionWhen the length of the wire is doubled. Ammeter reading decreases . . . . . . . .
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Q338
Open questionA.C. is converted into DC by . . . . . . . .
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Q339
Open questionThe 'Choke' used with a tube light is basically
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Q340
Open questionIf the resistance of a circuit is doubled to keep the voltage constant, the electric current flowing in the circuit will be . . . . . . . .
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