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Current Electricity in Physics
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Current Electricity in Physics
Quiz
Question 1. The SI unit of electric current is:
Coulomb
Volt
Ampere
Ohm
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Question 2. Ohm’s law is expressed as:
V = IR²
V = IR
I = VR
P = VI
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Question 3. Resistance depends on:
Length of conductor
Area of cross-section
Material of conductor
All of the above
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Question 4. The reciprocal of resistance is known as:
Power
Conductance
Capacitance
Voltage
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Question 5. The drift velocity of electrons is:
Equal to the speed of light
Very large
Very small
Zero
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Question 6. The SI unit of resistivity is:
Ω
Ω/m
Ωm
m/Ω
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Question 7. Kirchhoff’s First Law is based on:
Law of energy conservation
Law of charge conservation
Law of momentum conservation
Law of power conservation
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Question 8. In a series circuit, current is:
Different in each resistor
Same in all resistors
Zero
Maximum in the first resistor
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Question 9. A fuse wire is made of material having:
High melting point and high resistance
Low melting point and high resistance
Low melting point and low resistance
High melting point and low resistance
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Question 10. The power dissipated in a resistor is given by:
P = IR
P = I/R
P = I²R
P = V/R²
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