10th Science Chapter -04 Electricity Creative One Mark Question and Answers Part-01
10th Science Chapter -04 Electricity Creative One Mark Question and Answers Part-01
01.The electric current in a closed circuit always flows from the ____ terminal of the electric cell to _____ terminal
a) ve to +ve
b) +ve to -ve
c) +ve to +ve
d) none
Correct answer
+ve to -ve
02.The relation between potential difference (V) and current (I) is
a) V a I
b) V a I^2
c) V a I / I
d) None of the above
Correct answer
None of the above
03.One micro ampere is equal to 10^-3 A
a) true
b) false
Correct answer
false
04.SI unit of resistance is
a) mho
b) joule
c) ohm
d) ohm meter
Correct answer
ohm
05.The potential difference required for the flow of charges is provided by the voltmeter
a) true
b) false
Correct answer
false
06.if the resistance in a series circuit doubles total current will be
a) doubles
b) halved
c) same
d) increases
Correct answer
halved
07.1 Ampere is given as
a) 1 c x 1 s
b) 1 c / 1 s
c) 1 s / 1 c
d) None of the above
Correct answer
1 c / 1 s
08.A small wire presents inside the bulb is called
a) Conductor
b) Filament
c) Insulator
d) None of the above
Correct answer
Filament
09.What does a switch do?
a) Oppose the current
b) Open and close the circuit
c) Provide current
d) Store the energy
Correct answer
Open and close the circuit
10.In parallel combination resistance decrease due to increase in
a) Area of cross section
b) Voltage
c) Length
d) current
Correct answer
current
11.Rheostat is also called as a variable resistor
a) true
b) False
Correct answer
true
12.If resistance decreases, then current will
a) Volt
b) Length
c) Area
d) None of the above
Correct answer
Area
13.Kilowatt - hour is unit of
a) power
b) potential difference
c) force
d) Electrical energy
Correct answer
Electrical energy
14.Which of following relation is correct for voltage work done and charge
a) V = W x Q
b) W = V x Q
c) V = Q 1 W
d) W = V / Q
Correct answer
W = V x Q
15.Why are copper wires used as connecting wires
a) Low resistivity
b) Low conductivity
c) High Resistivity
d) Both A and B
Correct answer
Low resistivity
16.The device which easily closes or open an electric circuit is called as
a) Switch
b) Cell
c) Key
d) Bulb
Correct answer
Key
17.Direction of conventional current is from
a) Negative terminal to positive
b) In both the directions
c) Positive terminal to negative terminal
d) None of the above
Correct answer
Positive terminal to negative terminal
18.Which of the following is correct
a) Rate of change of charge is electric power
b) Rate of change of charge is current
c) Rate of change of energy is current
d) Rate of change of current is change
Correct answer
Rate of change of charge is current
19.Resistance of the wire is inversely proportional to length of the wire
a) true
b) false
Correct answer
false
20.The resistance of material depends on
a) Temperature
b) Length of conductor
c) Area of cross - section
d) All the above
Correct answer
All the above