When resistors are connected in series, then net resistance . . . . . . . .
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Physics GK · all questionsElectricity and Magnetism
Electricity and Magnetism
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The resistance of the wire is inversely proportional to . . . . . . . .
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Why is the filament of the electric bulb usually of tungsten?
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Dynamo core is laminated because
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A freely suspended magnet always aligns in the . . . . . . . . direction.
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Which of the following statements is incorrect?
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Inactive nitrogen and argon gases are usually used in electric bulbs in order to
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Which of the following laws deduces the expression for the force between two stationary point charges in vacuum or free space?
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A filament of electric bulb draws a current of 0.8A in 5 minutes. Find the amount of electric charge flowing through the circuit.
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Two long wires each carrying a current in the same direction are placed close to each other.
Which one of the following statement is correct?
Which one of the following statement is correct?
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Water cannot be used to extinguish fire caused by electric current because it may
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A current of 0.75A is drawn by a filament of an electric bulb in 9 minutes. Find the amount of electric charge flowing through the current.
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A good conductor while carrying current is
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Lightning is caused due to electric
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. . . . . . . . commonly used in electro-heating devices.
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Generator is a device which converts . . . . . . . .
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Electrical fuse is based on which of the following?
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Why the batteries are used in electrical circuits?
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A dynamo which is said to generate electricity actually acts as a
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What will be the resultant resistance of a circuit that has three resistors of each 25 Ω in series?
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