Advertisements
Advertisements
प्रश्न
______ is the device used to close or open an electric circuit.
Advertisements
उत्तर
Key or Switch is the device used to close or open an electric circuit.
APPEARS IN
संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?
Draw a circuit diagram to show how 3 bulbs can be lit from a battery so that 2 bulbs are controlled by the same switch the third bulb has its own switch.
Name the instrument used to control current in an electric circuit.
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the circuit ______.
Study the electric circuit below. Which of the following switches should be closed so that only two bulbs will light up
The rate of flow of electric charges in a circuit is called ______.
In an electrical circuit two resistors of 2 Ω and 4 Ω respectively are connected in series to a 6 V battery. The heat dissipated by the 4 Ω resistor in 5 s will be
In an electric circuit, the current starts from ______.
Paheli is running short of connecting wires. To complete an electric circuit, she may use a ______.
Set up the circuit shown in Figure again. Move the key to ‘ON’ position and watch carefully in which direction the compass needle gets deflected. Switch ‘OFF’ the current. Now keeping rest of the circuit intact, reverse the connections at the terminal of the cell. Again switch ‘on’ the current. Note the direction in which the needle gets deflected. Think of an explanation.
