10th Samacheer Quiz

Q1. Which equation gives equivalent resistance for resistors in parallel?

1/R = 1/R₁ + 1/R₂ + ... R = R₁ + R₂ + ... R = R₁R₂ R = V/I²

Q2. A 220 V appliance draws 2 A current. What is its power?

110 W 220 W 440 W 880 W

Q3. What is the direction of electron drift?

Opposite to conventional current Same as conventional current Only upward Directionless

Q4. What is the SI unit of potential difference?

Volt Ampere Ohm Coulomb

Q5. A 60 W lamp operates at 220 V. Its current is approximately:

0.27 A 3.67 A 13.2 A 280 A

Q6. What is the total resistance of 2 Ω and 3 Ω in series?

5 Ω 1 Ω 6 Ω 2.5 Ω

Q7. For the same current through two resistors, which produces more heat?

The one with higher resistance The one with lower resistance Always equal in both Neither

Q8. Electric power is the rate of:

Consumption of electrical energy Storage of charge Change of resistance Change of mass

Q9. Why is earthing used in domestic electrical systems?

To safely divert leakage current to earth To increase voltage To calculate electricity bill To generate current

Q10. How many watts are in 1 kilowatt?

1000 W 100 W 10 W 10,000 W

Electricity