Q1 · hard · AI-verified
The magnetic field inside a long straight solenoid carrying current is:
- Zero everywhere inside
- Uniform and parallel to the axis of the solenoid
- Uniform and perpendicular to the axis of the solenoid
- Non-uniform and perpendicular to the axis
Q2 · hard · AI-verified
A household electric circuit has a fuse of 5 A. How many bulbs of 100 W rating (operating at 220 V) can be safely connected in this circuit?
- 12
- 11
- 10
- 5
Q3 · medium · AI-verified
An electric iron consumes 1000 W of power when operated at 250 V. What is the current drawn by the iron?
- 40 A
- 2.5 A
- 4 A
- 0.4 A
Q4 · easy · AI-verified
According to Ohm's Law, if the voltage across a conductor is 12 V and the resistance is 4 Ω, what is the current flowing through it?
- 0.33 A
- 8 A
- 48 A
- 3 A
Q5 · medium · AI-verified
A resistor of 10 Ω is connected to a battery of 5 V. What is the current flowing through the circuit?
- 50 A
- 0.2 A
- 0.5 A
- 2 A