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प्रश्न
State the conditions for the flow of charge in a circuit from one point to the other.
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उत्तर
The main condition for the flow of charge between two points is the difference in their potentials. If the potential difference is greater, a strong current flows and if both points are at the same potential, no current will flow.
संबंधित प्रश्न
Draw the electrical symbols of the following components and state its use:
Rheostat (variable resistance)
Three resistors are connected as shown in the diagram.
Through the resistor 5 ohm, a current of 1 ampere is flowing.
(i) What is the current through the other two resistors?
(ii) What is the p.d. across AB and across AC?
(iii) What is the total resistance
The lamps in a house hold circuit are connected in parallel because:
(a) this way they required less current
(b) if one lamp fails the others remain lit
(c) this way they require less power
(d) if one lamp fails the other also fail
Two cells each having an e.m.f. of 2 V and an internal resistance of 2Ω are
connected (a) In series, and ( b) In para 1le l as shown in fig. . What is the
current flowing through the cir cu it in each_ case?
Three heaters each rated 250 W, 100 V are connected in parallel to a 100 V supply. The resistance of each heater
What should I choose ___________________
b. for getting protection from electric current.
c. to measure the current in the circuit?
Problems for practice:
If 3A current flows through a circuit, then convert the current in terms of a milliampere.
