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प्रश्न
State the condition when it is advantageous to connect cells in series.
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उत्तर
It is advantageous to connect cells in series if the external resistance is large enough compared to the total internal resistance of cells.
संबंधित प्रश्न
Which particles constitute the electric current in a metallic conductor?
Why should the resistance of:
a voltmeter be very large?
The p.d. across a 3 Ω resistor is 6 V. The current flowing in the resistor will be:
(a) `1/2A`
(b) 1 A
(c) 2 A
(d) 6 A
An electric bulb of resistance 20 Ω and a resistance wire of 4 Ω are connected in series with a 6 V battery.
Draw the circuit diagram, and calculate:
(a) total resistance of the circuit.
(b) current through the circuit.
(c) potential difference across the electric bulb.
(d) potential difference across the resistance wire.
Find the effective resistance in the following circuit diagrams (Fig.):
Answer the following question.
What is the function of a galvanometer in a circuit?
What is meant by internal resistance of a cell?
Define the following:
Conventional current
