Advertisements
Advertisements
प्रश्न
Draw circuit symbols for variable resistance
Advertisements
उत्तर
Variable resistance
APPEARS IN
संबंधित प्रश्न
Draw a schematic diagram of a circuit consisting of a battery of three cells of 2 V each, a 5 Ω resistor, an 8 Ω resistor, and a 12 Ω resistor, and a plug key, all connected in series.
Draw circuit symbols for
fixed resistance
Draw circuit symbols for
a cell
Draw circuit symbols for
an open switch
Tell the odd one out. Give a proper explanation.
Explain the construction and working of the following. Draw a neat diagram and label it.
Electric motor
In an electric circuit, electron flow a from of point of ______ potential to the point of ______ potential.
What do you understand by the closed electric circuit
Draw a neat diagram showing a closed electric circuit.
The unit of electrical power is _______.
______ is the device used to close or open an electric circuit.
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
Draw the circuit diagram for the following series connection
A device that is used to break an electric circuit is called ______.
What are the types of electric circuits?
In an electrical circuit three incandescent bulbs A, B and C of rating 40 W, 60 W and 100 W respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?
When an electric current flows through a copper wire AB as shown in the following figure, the wire
Will the bulb glow in the circuit shown in the following figure? Explain.
An electric motor rated 1100 W is connected to 220 V mains. Find:
- The current drawn from the mains,
- Electric energy consumed if the motor is used for 5 hours daily for 6 days.
- Total cost of energy consumed if the rate of one unit is 5.
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.
