EASY
7th CBSE
IMPORTANT
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To make a battery of two cells, the negative terminal of one cell is connected to the negative terminal of another cell.

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Important Questions on Electric Current and its Effects

EASY
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q D
Give reasons for the following statements.
A fuse has a low melting point.
EASY
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q D
Give reasons for the following statements.
MCBs are used in place of fuses in electrical circuits.
MEDIUM
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q D
Give reasons for the following statements.
A lighted electric bulb connected to the mains should not be touched.
EASY
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q D
Give reasons for the following statements.
CFL's are being encouraged to be used in place of bulbs.
EASY
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q D
Give reasons for the following statement.
Nichrome wire, is used in electrical iron box.
MEDIUM
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q B
Give reasons for the following:
Electromagnets are temporary magnets.
MEDIUM
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q B

Give reasons for the following:
The core of an electromagnet is made up of iron.

MEDIUM
7th CBSE
IMPORTANT
Frank Everyday Science>Chapter 14 - Electric Current and its Effects>Quiz time>Q B

Give reasons for the following:
Current carrying solenoid acts as a magnet.