Science (Physics)
Electricity & Circuit Science Quiz
Test your knowledge on the fascinating world of physics and electricity! This quiz consists of 21 multiple-choice questions designed to challenge your understanding of electrical concepts, resistivity, circuits, and laws of electricity.
Join us to:
- Enhance your learning about electric current and resistance.
- Explore the principles behind everyday electrical appliances.
- Compete with others and see how much you really know!
Q1:-Electrical resistivity of a metallic wire depends upon
Its length
Its thickness
Its shape
Nature of the material
Q2:- Conventionally, the direction of the current is taken as :-
The direction of flow of negative charge
The direction of flow of atoms
The direction of flow of molecules
The direction of flow of positive charge
Q3:-The unit of specific resistance is
Ohm
Volt
Ohm-metre
Ampere
Q4:-An electric iron draws a current 4 A when connected to a 220 V mains. Its resistance must be :-
1000 Ω
55 Ω
44 Ω
None of these
Q5:-The hindrance presented by material of conductor to the smooth passing of electric current is known as:
Resistance
Conductance
Inconductance
None of the above
Q6 :- On which of the given, resistance does not depend :-
Length of the Conductor
Area of cross section
Temperature
Density
Q7 :- A voltmeter is used to find p.d. In any electrical circuit which of the statement given below is true :
A voltmeter is a high resistance instrument and is connected in series circuit.
A voltmeter is a low resistance instrument and is connected in series circuit
A voltmeter is a high resistance instrument and is connected in parallel
A voltmeter is a low resistance instrument and is connected in series circuit
Q8:- Presence of chemically inactive gases like argon and …………… prolong the life of the filament.
Oxygen
Carbon dioxide
Hydrogen
Nitrogen
Q9:- The commercial unit of energy is :-
Watt
Watt-hour
Kilowatt-hour
Kilo-joule
Q10:- An electric fuse works on the:
Chemical effect of current
Magnetic effect of current
Lighting effect of current
Heating effect of current
Q 11:- Two electric bulbs have resistances in the ratio 1:2. If they are joined in series, the energy consumed in them is in the ratio.:-
2:1
1:2
4:1
1:1
Q12:-The resistance of a conductor is inversely proportional to its :-
Area of cross-section
Length
Density
None of the above
Q13:-A current of 2A flows through a conductor whose ends are at a p.d of 4V. The resistance of the conductor is :
8 Ω
O.5 Ω
6 Ω
2 Ω
Q14:-The rheostat is used in the circuit to :-
Increase the magnitude of current only
Decrease the magnitude of current only
Increase or decrease the magnitude of current
None of these
Q15:-During the verification of Ohm’s law :-
Ammeter and voltmeter should be connected in series
Ammeter should be connected in series and voltmeter should be in parallel
Ammeter should be connected in parallel and voltmeter in series
Ammeter and voltmeter should be connected in parallel
Q16:-The relation between potential difference (V) and current (I) was discovered by :-
Ampere
Newton
Volta
Ohm
Q17:-Coulomb is the SI unit of
Current
Charge
Potential Difference
Resistance
Q18:-The ratio of voltage and electrical current in a closed circuit:
Decreases
Increases
Remain constant
Varies
Q19:-while wiring of electricity in ur new home. How will u arrange the bulb and fan ?
In series
In parallel
Both (a) & (b)
None of the above
Q20:- Why battery is used in the circuit
Measure current
To maintain the potential difference
Oppose the current
Measure potential difference
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