Q461
Open questionFilament in traditional incandescent bulb is made up of which metal?
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Physics GK · all questionsElectricity and Magnetism
Electricity and Magnetism
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Q462
Open questionCalculate the electric current when a generator of 220 V output connected with a motor of 1100 W power?
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Q463
Open questionA conducting wire is dropped along East-West direction, then
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Q464
Open questionConsider the following image.
A proton enters a magnetic field at right angles to it, as shown above. The direction of force acting on the proton will be
A proton enters a magnetic field at right angles to it, as shown above. The direction of force acting on the proton will be
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Q465
Open questionA current I flows through a resistor. A source maintains a potential difference of V across the resistor. The energy supplied by the source in time t is
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Q466
Open questionA common transformer operates on . . . . . . . .
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Q467
Open questionHow much work is done in moving the charge of 5C across two points with a potential difference of 13V?
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Q468
Open questionFour resistors of 1 Ω are connected in series order, find the resulting resistance.
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Q469
Open questionAn electric current of 0.5 A flows in the filament of an electric bulb for 8 min. What will be the amount of charge flows by electric current?
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Q470
Open questionAssertion (A) Eddy current is produced in any metallic conductor when magnetic flux is changed around it.
Reason (R) Electric potential determine the flow of charge.
Reason (R) Electric potential determine the flow of charge.
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Q471
Open questionThe phenomena of electromagnetic induction is . . . . . . . .
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Q472
Open questionThe reciprocal of resistance is called
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Q473
Open questionA charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5V, the amount of work done is
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Q474
Open questionWhen do electrons move for the flow of charges in a conducting metallic wire?
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Q475
Open questionA 100 watt electric bulb is used for 10 hours. What will be the cost of electricity consumed, if the consumption cost is Rs. 5 per unit?
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Q476
Open questionWhich one of the following devices changes low voltage alternating current to high voltage alternating current and vice-versa?
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Q477
Open questionThe easiest method of maintaining the electric potential difference between the two ends of a conductor is to connect it between the terminals of . . . . . . . . to get a continuous flow of current.
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Q478
Open questionWhich of the following solutions is not a conductor of electricity?
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Q479
Open questionIf the resistance of the coil is 750 ohms, how much current will flow from the 220V source to the electric heater coil?
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Q480
Open questionThe SI unit of . . . . . . . . is ohm?
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