Advertisements
Advertisements
Question
What potential difference is needed to drive a current o f 1 A through a 5 Ω resistor?
Advertisements
Solution
Let the required potential difference be V
Given, current I = 1 A and Resistance, R = 5 Ω
AIC to Ohm's law,
V = IR= (1) x (5) = 5 volt
APPEARS IN
RELATED QUESTIONS
Write any two characteristics of a series combination of resistors.
Find the equivalent resistance between points A and B
When a 4 Ω resistor is connected across the terminals of a 12 V battery, the number of coulombs passing through the resistor per second is:
(a) 0.3
(b) 3
(c) 4
(d) 12
The substance having infinitely high electrical resistance is called:
(a) conductor
(b) resistor
(c) superconductor
(d) insulator
State the order of resistivity of (i) a metal, (ii) a semiconductor and (iii) an insulator.
State how are the two resistors joined with a battery when equivalent resistance is more than either of the two resistances.
Why are thick copper wires used as connecting wires?
What is the equivalent resistance between the points X and Y for the given network?
Consider the following combinations of resistors:
The combinations having equivalent resistance 1 Q is/are ______.
