Advertisements
Advertisements
प्रश्न
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
पर्याय
switch L only
switch M only
Switch M and N only
either switch L or switches M and N
Advertisements
उत्तर
either switch L or switches M and N
APPEARS IN
संबंधित प्रश्न
Who will spend more electrical energy? 500 W TV Set in 30 mins, or 600 W heater in 20 mins?
Two tungsten bulbs of power 50 W and 60 W work on 220 V potential difference. If they are connected in parallel, how much current will flow in the main conductor?
______ is the device used to close or open an electric circuit.
State whether true or false. If false, correct the statement.
Ammeter is connected in parallel in any electric circuit.
Assertion: In an open circuit, the current passes from one terminal of the electric cell to another.
Reason: Generally, the metal disc of a cell acts as a positive terminal.
The rate of flow of electric charges in a circuit is called ______.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
What are the types of electric circuits?
Three bulbs A, B, C are connected in a circuit as shown in the following figure. When the switch is ‘ON’
Match the following
| 1. | Insulator | a. | Coulomb |
| 2. | Conductor | b. | Electric circuit |
| 3. | Closed path | c. | Copper |
| 4. | Electric charge | d. | Rubber |
