Current Electricity in Physics

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Current Electricity in Physics

Question 1. The SI unit of electric current is:

Coulomb

Volt

Ampere

Ohm

Question 2. Ohm’s law is expressed as:

V = IR²

V = IR

I = VR

P = VI

Question 3. Resistance depends on:

Length of conductor

Area of cross-section

Material of conductor

All of the above

Question 4. The reciprocal of resistance is known as:

Power

Conductance

Capacitance

Voltage

Question 5. The drift velocity of electrons is:

Equal to the speed of light

Very large

Very small

Zero

Question 6. The SI unit of resistivity is:

Ω/m

Ωm

m/Ω

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

Question 8. In a series circuit, current is:

Different in each resistor

Same in all resistors

Zero

Maximum in the first resistor

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

Question 10. The power dissipated in a resistor is given by:

P = IR

P = I/R

P = I²R

P = V/R²

Quiz

Question 1. The SI unit of electric current is:

Question 2. Ohm’s law is expressed as:

Question 3. Resistance depends on:

Question 4. The reciprocal of resistance is known as:

Question 5. The drift velocity of electrons is:

Question 6. The SI unit of resistivity is:

Question 7. Kirchhoff’s First Law is based on:

Question 8. In a series circuit, current is:

Question 9. A fuse wire is made of material having:

Question 10. The power dissipated in a resistor is given by:

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