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Physics 10 Chapter 14 - Current and Electricity - 34
1.
In house wiring, all appliances are connected ...................with each other?
a) In parallel
b) Perpendicular
c) Side by side
d) In series
2.
What are the major dangers of electricity?
a) (b) Fire
b) (a) Both b and c
c) (c) Electric shock
d) (d) None of these
3.
With which material, electric wires are insulated for the purpose of safety?
a) With plastic cover
b) With iron cover
c) With aluminium cover
d) With copper cover
4.
When a short circuit occurs in a circuit?
a) Due to low voltage
b) Due to low current
c) Due to large resistance
d) Due to low resistance
5.
When a short circuit occurs in a circuit?
a) Due to low voltage
b) Due to large resistance
c) Due to low current
d) Due to large current
6.
When a short circuit occurs in a circuit?
a) When live and earth wire come in direct contact
b) When earth wire and ground wire come in direct contact
c) When earth wire and neutral wires come in direct contact
d) When live and neutral wires come in direct contact
7.
What is the insulation called with which the wires carrying electricity are covered?
a) Diode
b) Cable
c) Switch
d) Copper
8.
What is the resistance of dry human skin?
a) More than 100,000 ohms
b) Less than 100,000 ohms
c) More than 1,000,000 ohms
d) Less than 10,000 ohms
9.
With which wire, the fuse is connected in series?
a) Neutral wire
b) Live wire
c) Earth wire
d) Ground wire
10.
What is the safety device called that is connected in series with the livewire in the circuit to protect the equipments when excess current flows?
a) Fuse
b) Resistor
c) Capacitor
d) Diode
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