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प्रश्न
Draw a diagram showing two bulbs connected in series to a dry cell.
उत्तर
Two bulbs glowing dimly
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संबंधित प्रश्न
What transformation of energy takes place when current is drawn from a cell?
What is the electrical potential at a point in an electric field when 24 J of work is done in moving a charge of 96 C from infinity?
Why does the filament of an electric bulb in an electric circuit get white-hot, but not the connecting wires?
Write SI unit of
Electric current,
The following figure shows a metal rod PQ mounted on an insulated stand. The cap of an uncharged electroscope touches one end Q of the metal rod. A negatively charged ebonite rod is brought near the other end P of the metal rod.
(a) What charge does the end P have?
(b) What charge does the end Q have?
(c) What charge does the cap of the electroscope have?
(d) What charge does the gold leaf have?
(e) Will the leaf diverge or collapse? Give reason.
(f) If the electroscope is now earthed, what charge does the metal rod have?
A bulb is connected to a cell. How is the resistance of circuit affected if another identical bulb is connected (i) in series, (ii) in parallel, with the first bulb?
What is the physical meaning of resistance?
Explain the following:
Potential difference
