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प्रश्न
In which direction do electrons flow?
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उत्तर
The flow of electrons is from the negative terminal to the positive terminal of a cell.
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संबंधित प्रश्न
In which direction does conventional current flow around a circuit?
What is an electric current?
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An electric circuit consisting of a 0.5 m long nichrome wire XY, an ammeter, a voltmeter, four cells of 1.5 V each and a plug key was set up.
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(b) In which circuit, if one bulbs be brighter?
Define the term resistivity.
A wire of length 5 m has a resistance of 2.0 Ω calculate:
(a) the resistance of wire of length 1 m
(b) the equivalent resistance if two such wires each of length 2 m are joined in parallel.
(c) the resistance of 1 m length of wire of same material but of half diameter.
An electric current flowing in a wire creates ______ around the wire.
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(a) Current which flows in the element when it is connected to a 250 V supply,
(b) Resistance of the filament,
(c) Heat produced in 1 minute by the element,
(d) Cost of running the kettle for 10 minutes a day for 30 days of the month, at the rate of Rs. 3.00 per unit.
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A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
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Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
