Advertisements
Advertisements
प्रश्न
State the S.I. unit of electric potential.
Advertisements
उत्तर
S.I. unit of potential is volt (v).
APPEARS IN
संबंधित प्रश्न
Define the unit of resistance (or Define the unit "ohm").
The values of potential difference V applies across a resistor and the corresponding values of current I flowing in the resistor are given below:
| Potential differences, V (in volts) | : | 2.5 | 5.0 | 10.0 | 15.0 | 20.0 | 25.0 |
| Current, I (in amperes) | : | 0.1 | 0.2 | 0.4 | 0.6 | 0.8 | 1.0 |
The following table shows current in Amperes and potential difference in Volts.
Which law will the graph prove? Explain the law.
Find the resistance of a conductor if the electric current flowing through it is 0.35 A when the potential difference across it is 1.4 V.
Three resistors are connected to a 12 V battery as shown in the figure given below:
(i) What is the current through the 8 ohm resistor?
(ii) What is the potential difference across the parallel combination of 6 ohm and 12 ohm resistor?
(iii) What is the current through the 6 ohm resistor?
Three resistors are connected to a 6 V battery as shown in the figure given below:
Calculate:
(i) the equivalent resistance of the circuit.
(ii) total current in the circuit.
(iii) potential difference across the 7.2 Ω resistor.
The figure shows a circuit. When the circuit is switched on, the ammeter reads 0.5 A.
(i) Calculate the value of the unknown resistor R.
(ii) Calculate the charge passing through the 3 Ω resistor in 120 s.
(iii) Calculate the power dissipated in the 3 Ω resistor.
Define Electric potential.
What is the measure of the work done on the unit positive charge to bring it to that point against all electrical forces?
Study the following circuit and find:
- Effective resistance of the circuit
- Current drawn from the battery
- Potential difference across the 5 omega resistor
