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प्रश्न
Complete the following sentence:
A fuse is a short piece of wire of high ......... and low
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उत्तर
A fuse is a short piece of wire of high resistance and low melting point.
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संबंधित प्रश्न
Which of the following units could be used to measure electric charge?
(a) ampere
(b) joule
(c) volt
(d) coulomb
If the amount of electric charge passing through a conductor in 10 minutes is 300 C, the current flowing is:
(a) 30 A
(b) 0.3 A
(c) 0.5 A
(d) 5 A
Draw a circuit diagram showing two lamps, one cell and a switch connected in series.
How can you change the brightness of the lamp?
The circuit diagram in fig shows two coils of an insulated copper wire wound on a cardboard tube. G is a center zero galvanometer.
(a) Describe what will happen when th e swi tch K is cl osed for severa l
seconds and then opened again .
(b) What will be the effect of repeating the experiment with an iron placed in the tube?
At the time of short circuit, the electric current in the circuit ______.
An electric bulb is marked 100 W, 250 V. How much current will the bulb draw if connected to a 250 V supply?
The flow of electric charge per unit time is called potential difference.
Match the following:
| 1. | 1 mA | a. | series |
| 2. | 1 pA | b. | ohmmeter |
| 3. | Ammeter | c. | 10-6 ampere |
| 4. | Electrical resistivity | d. | 10-3 ampere |
An ammeter is always placed in parallel with the circuit.
