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संबंधित प्रश्न
A switch must be connected in ______.
A 720 W heater operates from a 220 V line voltage. Calculate:
(a) The electrical energy consumed by the heater in 3 h.
(b) The cost of electrical energy consumption at the rate of 60 paise per kWh.
Two resistors P and Q of the same material and length but of different thickness are connected in parallel to a battery. The cross- sectional area of P is twice that of Q. What is the ratio of
(a) The resistance of P to the resistance of Q?
(b) The current in P to the current in Q?
Find the effective resistance in the following circuit diagrams (Fig.):
An electric bulb is marked 100 W, 250 V. How much current will the bulb draw if connected to a 250 V supply?
______ is used to measure the electric current.
Kilowatt hour is the unit of
Name any two devices, which are working on the heating effect of the electric current.
Conventionally, the direction of the current is taken as:
In the process of current flow through a conductor, the amount of charge passing per unit time gives:
