Advertisements
Advertisements
प्रश्न
उत्तर
संबंधित प्रश्न
What do the following symbols mean in circuit diagrams?
Draw circuit symbols for
fixed resistance
Write the condition required for a circuit to be a closed circuit.
Draw a neat diagram showing a closed electric circuit.
Name the instrument used to control current in an electric circuit.
Explain the following:
Closed circuit
In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?
The unit of electrical power is _______.
Find the odd one out and give its explanation.
Write scientific reason.
It is beneficial to carry electrical energy in AC form as it is carried over long distances.
In the circuit diagram below, 10 units of electric charge move past point x every second What is the current in the 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.
When an electric current flows through a copper wire AB as shown in Figure14.1, the wire
Choose the statement which is not correct in the case of an electric fuse.
Our body is a ________________ of electricity.
What are the essential components of an electric circuit?
In the following arrangement shown in Fig. 12.2, the bulb will not glow if the ends A and B are connected with
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.
