Advertisements
Advertisements
प्रश्न
Give the electric current unit.
What is the SI unit of electric current.
Advertisements
उत्तर
The standard SI unit for current is the ampere with the symbol A.
संबंधित प्रश्न
1 A = _________ mA
- 102
- 103
- 10-3
- 10-6
Draw the electrical symbols of the following components and state its use:
Rheostat (variable resistance)
Draw the electrical symbols of the following components and state its use:
Ammeter.
A Radio Set Draws a Current of 0.36 a for 15 Minutes. Calculate the Amount of Electric Charge that Flows Through the Circuit.
How many electrons are flowing per second past a point in a circuit in which there is a current of 5 amp?
The circuit diagram given below shows the combination of three resistors R1, R2 and R3:
Find :
(i) total resistance of the circuit.
(ii) total current flowing in the circuit.
(iii) the potential difference across R1.
Name two effects produced by electric current.
A given wire of resistance 1 Ω is stretched to double its length. What will be its new resistance?
Define the following:
Semiconductors
1 kWh = `(1 "volt" xx 1 "ampere" xx "_________")/1000`
Two electric bulbs rated 100 W; 220 V and 60 W; 220 V are connected in parallel to electric mains of 220 V. Find the current drawn by the bulbs from the mains.
Name any two devices, which are working on the heating effect of the electric current.
Unit of electric power may also be expressed as
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 |
What is the SI unit for the current?
