Advertisements
Advertisements
प्रश्न
One unit of electrical energy consumed is equal to 1000 kilowatt-hour.
विकल्प
True
False
उत्तर
One unit of electrical energy consumed is equal to 1000 kilowatt-hour - true.
APPEARS IN
संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Rheostat (variable resistance)
One coulomb charge is equivalent to the charge contained in:
(a) 2.6 × 1019 electrons
(b) 6.2 × 1019 electrons
(c) 2.65 × 1018 electrons
(d) 6.25 × 1018 electrons
What is an electric current?
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
A wire of uniform thickness with a resistance of 27Ω is cut into three equal pieces and they are joined in parallel. Find the equivalent resistance of the parallel combination.
A cell supplies a current of 1.2 A through two 2 Ω resistors connected in parallel. When the resistors are connected in series, it supplies a current of 0.4 A. Calculate: (i) the internal resistance and (ii) e.m.f. of the cell.
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. Calculate :
The total current taken from the supply
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.