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प्रश्न
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उत्तर
Power-voltage rating of an electrical appliance indicates the value of voltage above which the appliance should not be used. It serves as a precaution to the customer and also helps to calculate the maximum value of current that can be safely passed through the appliance.
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संबंधित प्रश्न
What Makes an Electric Current Flow in a Wire?
Which unit could be used to measure current?
(a) Watt
(b) Coulomb
(c) Volt
(d) Ampere
In the circuit diagram given below, three resistors R1, R2, and R3 of 5 Ω, 10 Ω and 30 Ω, respectively are connected as shown
Calculate:
- current through each resistor.
- total current in the circuit.
- total resistance in the circuit.
Give three reasons why different electrical appliances in a domestic circuit are connected in parallel.
Ten bulbs are connected in a series circuit to a power supply line. Ten identical bulbs are connected in a parallel circuit to an identical power supply line.
(d) Which circuit would have less current in it?
Name two effects produced by electric current.
Calculate the effective resistance between the points A and B in the network shown below in Figure 8.45
State the S.I. units of electrical power.
By convention, the direction of electric current in the external circuit is taken as:
Common sources of Alternating Current (AC) are:
