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प्रश्न
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उत्तर
Four components of an electrical circuit
(i) Cell 
(ii) A load (bulb) 
(iii) Key 
(iv) Connecting wire 
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संबंधित प्रश्न
What determines the rate at which energy is delivered by a current?
State two factors on which the electrical energy consumed by an electrical appliance depends.
Which one has a higher electrical resistance : a 100 watt bulb or a 60 watt bulb?
An electric bulb is connected to a 220 V power supply line. If the bulb draws a current of 0.5 A, calculate the power of the bulb.
A bulb is rated as 250 V; 0.4 A. Find its : (i) power, and (ii) resistance.
When an electric lamp is connected to 12 V battery, it draws a current of 0.5 A. The power of the lamp is:
(a) 0.5 W
(b) 6 W
(c) 12 W
(d) 24 W
State the S.I. unit of electrical power.
An electric bulb marked 220 V, 100 W will get fused if it is made to consume 150 W or more. What voltage fluctuation will the bulb withstand?
You are required to connect a bulb, a fan and a socket outlet to the mains in one set A and an air-conditioner and a refrigerator to the mains in other set B. Will you recommend the wire of same thickness and same insulation in both? explain your answer.
An electric iron is rated at 230 V, 750 W. What is its resistance? What maximum current can be passed through it?
