Advertisements
Advertisements
Question
Observe the following figure which bulb get fuse?
Advertisements
Solution
Bulb A
APPEARS IN
RELATED QUESTIONS
What do the following symbols mean in circuit diagrams?
Draw circuit symbols for
fixed resistance
Draw circuit symbols for
a cell
Draw circuit symbols for
a battery of three cells
Draw circuit symbols for
an open switch
Draw circuit symbols for
A closed switch
Find the odd one out and justify it.
Fuse wire, M.C.B., Rubber Gloves, Generator
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?
The following figure shows the symbols for components used in the accompanying electrical circuit. Place them at proper places and complete the circuit.
Which law can you prove with the help of above circuit?
Distinguish between a closed circuit and an open circuit, with the use of suitable labelled diagrams.
Match the column ‘A’ with column ‘B’.
|
Column ‘A’
|
Column ‘B’ |
|
(1) Eka - boron
|
(a) Germanium
|
|
(2) Eka - Aluminium
|
(b) Scandium
|
|
(3) Eka - Silicon
|
(c) Gallium |
What do you understand by the open electric circuit?
Draw a neat diagram showing a open electric circuit.
What is open circuit?
Find the odd one out and give its explanation.
Right or wrong sentence.
Increasing the current passing through the wire decreases the magnetic field intensity.
What is the use of earthing wire?
In the circuit shown, which switches (L,M or N) must be closed to light up the bulb?
In which of the following circuits are the bulb connected in series?
Higher Order Question
A student made a circuit by using an electric cell, a switch, a torch bulb (fitted in the bulb holder), and copper connecting wires. When he turned on the switch, the torch bulb did not glow at all. The student checked the circuit and found that all the wire connections were tight.
- What could be the possible reason for the torch bulb not glowing even when the circuit appears to be complete?
Draw the circuit diagram for the following series connection
_____ has a thin metallic filament that melts and breaks the connection when the circuit is overheated.
Three bulbs are connected end to end from the battery. This connection is called _______.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
When a circuit is open, _____ cannot pass through it.
What is the role of the earth wire in domestic circuits?
Explain about domestic electric circuits. (circuit diagram not required)
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.
In a circuit, if the key is in open (off) condition, then electricity will not flow.
When an electric current flows through a copper wire AB as shown in the following figure, the wire
In the above circuit, if the current reading in the ammeter A is 2A, what would be the value of R1?
The ______ is a species of fish that can give electric shocks of up to six hundred fifty watts of electricity.
A complete circuit is left on for several minutes, causing the connecting copper wire to become hot. As the temperature of the wire increases, the electrical resistance of the wire
How is Joule's law effect useful in electric circuits where fuse is used as a safety device?
