Question

& Connecting wire
d. Electric switch
5. Which of the following appliances does not use the heating effect of current
B. Electric bell
a. Electric heater
d. Electric bulb
c. Electric geyser
B. Fill in the blanks.
1. The Joule bowe Horks on the principle of heating effect of current,
ollen ghost
2.
is used to make filament of a bulb.
3.
Heating effect of the current was first discovered by
is a coil of wire closely wound in the form of a spiral.
5. Electric bell is based on the principle of
C. State TRUE or FALSE.
1.
An electromagnet does not attract a piece of iron.
2. An electric bell has an electromagnet.
3. Magnetic effect increases with decrease in number of turns of
conducting wire.
4.
An electromagnet also has two poles-- North and South.
5. The element of an electric iron is made of copper.
D. Name the following:
1. It is the material used to make fuse wire.
2. It is a device which automatically trips when there is excess of
current in the circuit.
3. It is a device used to lift heavy iron articles.
It is a SI unit of current.
5. It is an appliance which detects the presence of current in the
circuit.
Match the following:​

Answer 1

Answer:

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Explanation:

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