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प्रश्न
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उत्तर
Characteristics of fuse wire:
(i) It should have low melting point.
(ii) It should have high resistance.
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संबंधित प्रश्न
In the circuit diagram given below five resistances of 10 Ω, 40 Ω, 30 Ω, 20 Ω, and 60 Ω are connected as shown to a 12 V battery.
Calculate:
(a) total resistance in the circuit.
(b) total current flowing in the circuit.
In the circuit shown below, the voltmeter reads 10 V.
(a) What is the combined resistance?
(b) What current flows?
(c) What is the p.d. across 2 Ω resistor?
(d) What is the p.d. across 3 Ω resistor?
You can given one hundred 1 Ω resistors. What is the smallest and largest resistance you can make in a circuit using these?
A 3 pin mains plug is fitted to the lead for a 1 kW electric kettle to be used on a 250 V A.C. supply. Which of the following statements is NOT correct?
(a) A 13 A fuse is the most appropriate value to use.
(b) The brown wire should be connected to the live side of the mains.
What is the function of a step-up transformer?
MCB is used to protect household electrical appliances.
Which of the following correctly represents the formula for electric current?
In ionised gases (plasma), the charge carriers are:
The number of electrons required to produce a total charge of 1.6 C is:
