Advertisements
Advertisements
Question
Define the following:
Potential difference
Advertisements
Solution
Potential difference: The potential difference between two points may be defined as the work done in moving a unit positive charge from one point to the other.
APPEARS IN
RELATED QUESTIONS
The values of current (I) flowing through a given resistor of resistance (R), for the corresponding values of potential difference (V) across the resistor are as given below:
| V (volts) | 0.5 | 1.0 | 1.5 | 2.0 | 2.5 | 3.0 | 4.0 | 5.0 |
| I (amperes) | 0.1 | 0.2 | 0.3 | 0.4 | 0.5 | 0.6 | 0.8 | 1.0 |
Plot a graph between current (I) and potential difference (V) and determine the resistance (R) of the resistor.
Calculate the work done in moving a charge of 4 coulombs from a point at 220 volts to another point at 230 volts.
What is the potential difference between the terminals of a battery if 250 joules of work is required to transfer 20 coulombs of charge from one terminal of battery to the other?
How is a voltmeter connected in the circuit to measure the potential difference between two points? Explain with the help of a diagram.
Define the unit of resistance (or Define the unit "ohm").
Define the term ‘volt’.
Five resistors of different resistances are connected together as shown in the figure. A 12 V battery is connected to the arrangement.
Calculate:
(i) the total resistance in the circuit
(ii) the total current flowing in the circuit.
Define electric potential and potential difference.
A boy records that 4000 joules of work are required to transfer 10 coulombs of charge between two points of a resistor of 50 Ω. The current passing through it is:
Define Electric potential.
