Physicseasy · Past Paper
A resistor has a resistance of 5 Ohms. If a potential difference of 10 Volts is applied across it, what is the current?
A0.5 A
B2 A
C15 A
D50 A
✓ Correct Answer: B — 2 A
Using I = V/R, we get 10 / 5 = 2 Amperes.
Share this question
More from Physics
- An electric generator works on the principle of:
- A point moves with uniform acceleration and v1, v2, v3 denote average velocities in three successive intervals of time t1, t2, t3. Which of the following is correct?
- Two masses are 10 kg and 20 kg, separated by 2 m. The gravitational force between them is (G is universal constant):
- A car travels 1/3 distance with 10 km/h, 1/3 with 20 km/h and 1/3 with 60 km/h. Average speed is:
- What is the effect on the value of 'g' at a height equal to the radius of Earth?