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संबंधित प्रश्न
Fill in the blank:
To increase the effective resistance in a circuit the resistors are connected in _____________.
A current of 4 A flows around a circuit for 10 s. How much charge flows past a point in the circuit in this time?
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
How does the heat H produced by a current passing through a fixed resistance wire depend on magnitude of current I?
Find the effective resistance in the following circuit diagrams (Fig.):
What is the criteria for selecting a fuse wire?
Answer the following question.
An electric lamp of resistance 20 Ω and a conductor of resistance 4 0 are connected to a 6 V battery as shown in the circuit. Calculate: 
(a) the total resistance of the circuit,
(b) the current through the circuit,
(c) the potential difference across the (i) electric lamp and (ii) conductor, and
(d) power of the lamp.
Water : pipe :: Electric current : ______.
Kilowatt hour is the unit of
