Advertisements
Advertisements
प्रश्न
Name the law which is illustrated by the above V−I graph.
उत्तर
Ohm's law is illustrated by the above V−I graph.
APPEARS IN
संबंधित प्रश्न
If the potential difference across the ends of a conductor is 220 V and the resistance of the conductor is 44 Ω (ohm), then the current flowing through is _________.
- 0.2 A
- 0.5 A
- 2 A
- 5 A
Let the resistance of an electrical component remains constant while the potential difference across the two ends of the component decreases to half of its former value. What change will occur in the current through it?
State Ohm’s law and draw a neat labelled circuit diagram containing a battery, a key, a voltmeter, an ammeter, a rheostat and an unknown resistance to verify it.
A wire of resistance 3 ohm and length 10 cm is stretched to length 30 cm. Assuming that it has a uniform cross section, what will be its new resistance?
Fig. represents the circuit used for the verification of Ohm's law. Label the parts from A to F. state the function of each.
What is meant by the drift speed of free electrons?
An ammeter placed in series with an electric radiator reads 0.5 amps and a voltmeter placed across it reads 230 volts. What is the resistance of the radiator?
A current of 3.2 mA flows through a conductor. If charge on an electron is - 1.6 × 10-19 coulomb, find the number of electrons that will pass each second through the cross section of that conductor.