Advertisements
Advertisements
प्रश्न
The device used for measuring potential difference is
विकल्प
Potentiometer
Ammeter
Galvanometer
Voltmeter
Advertisements
उत्तर
Voltmeter
APPEARS IN
संबंधित प्रश्न
How much work is done when one coulomb charge moves against a potential difference of 1 volt?
Keeping the potential difference constant, the resistance of a circuit is doubled. By how much does the current change?
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 potential difference between the terminals of an electric iron is 240 V and the current is 5.0 A. What is the resistance of the electric iron?
In the circuit shown below:
The potential difference across the 3 Ω resistor is:
The voltage across a 3Ω resistance is 6 V. How large is the current? What is
the resistance of a filament lamp when a voltage of 3 V across it causes a
current of 0.5 A?
Write an expression for the electrical power spent in flow of current through a conductor in terms of resistance and potential difference.
Write an expression for the electrical power spent in flow of current through a conductor in terms of current and resistance.
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.
An electric charge always flows from a point at a ______ to a point at a ______.
