Household Circuits Class 10 ICSE Physics MCQ Questions
Looking for Household Circuits Class 10 ICSE Physics Chapter 9 MCQ Questions? If yes, You are the right page. Here we have provided ICSE class 10 physics chapter 9 multiple choice questions and answers. All MCQ are important.
1) At generating Station, the electric power is generated at
a) 12kV b) 11 kV
c) 14kV d) 15 kV
Ans-option (b)
2) At main sub-station, the voltage is stepped down from
a) 132kV to 33 kV
b) 135 kV to 40 kV
c) 33 kV to 11kV
d) 11kV to 132kV
Ans-option (a)
3) which wire carries current from source to the distribution board.
a) neutral wire
b) earth wire
c) live wire
d)Both (a) & (b)
Ans-option (c)
4) The MCB is connected in
a) live wire
b) neutral wire
c) earth wire
d) Both (a) & (b)
Ans- Option (a)
5) All the electrical appliance are connected in
a)series b) parallel
c) Both (a) & (b)
d)None of these
Ans-option (b)
6) on connecting one more appliance in the same circuit the resistance of the circuit well.
a) decrease
b) increase
c)Both (a) & (b)
d)Zero
Ans-option (b)
7) The main switch breaks the connection of.
a) live wire
b) neutral wire
c) Both (a) & (b)
d) None of these
Ans-option (c)
8) The rise in temperature of fuse depend on
a) current b) radius
c) length of wire
d)Both (a) & (b)
Ans-option (c)
9) The melting point of fuse element is
a) high b) low c)medium d) All of these
Ans-option (a)
10) A double pole switch disconnect
a) live wire
b) neutral wire
c) earth wire
d)Both (a) & (b)
Ans-option (d)
11) The single pole switch disconnect
a)live wire.
b) neutral wire
c) earth wire
d)Both (a) & (b)
Ans-Option (a)
12)The dual control switch are used in
a)long corridor
b) staircase
c) refrigerator
d)Both (a) & (b)
Ans-option (d)
13) It is deceptive & dangerous to connect a switch in
a)live wire
b) neutral wire
c)earth wire
d)Both (a) & (c)
Ans-option (b)
14)An electric motor of power 4000W is to be operated at main of 250v. Find the current drawn by the motor.
a)15A b) 17A
c)16A d) 18A
Ans-option (c)
p = 4000W, V=250V current drawn by moto(I)
p/v = 4000/250 = 16 A
15) A fuse wire is made of an alloy of
a) lead b) tin
c) Both (a) & (b)
d) copper
Ans- Option (c)
16) for which electrical appliances earthing to be done
a) geyser
b) toaster
c) refrigerator
d) All of these
Ans-Option (d)
17) In three-pin plug the pin on left is for
a) live wire.
b) neutral wire
c) earthing
d) None of these
Ans-option (a)
18) In socket the hole on right side is for connection to the
a) neutral wire.
b) live wire
c) earth wire
d) Both (a) & (b)
Ans-option (b)
19) A high tension wire has a resistance
a) high b) medium
c)low d) Both (a) & (b)
Ans-option (c)
20) An electric shock may not caused due to
a) damaged or poor insulation of wire
b) touching the appliance with wet hand
c) earthing of appliance
d) no fuse provided with the appliance
Ans-option (c)
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