Q16.A 10 Ω resistance is connected across 220 V −50 Hz AC supply. The time taken by the current to change from its maximum value to the rms value is: (1) 2. 5 ms (2) 1. 5 ms (3) 3. 0 ms (4) 4. 5 ms
What This Question Tests
The question tests the ability to apply the formula for the radius of a circular trajectory of a charged particle in a uniform magnetic field, given ratios of charge, mass, and velocity.
Concepts Tested
Formulas Used
r = mv/qB
📚 NCERT Sections This Tests
4.4 — A Horizontal Overhead Power Line Carries A Current Of 90 A In East To
Physics Class 11 · Chapter 4
4.4 A horizontal overhead power line carries a current of 90 A in east to west direction. What is the magnitude and direction of the magnetic field due to the current 1.5 m below the line?
4.6 — A 3.0 Cm Wire Carrying A Current Of 10 A Is Placed Inside A Solenoid
Physics Class 11 · Chapter 4
4.6 A 3.0 cm wire carrying a current of 10 A is placed inside a solenoid perpendicular to its axis. The magnetic field inside the solenoid is given to be 0.27 T. What is the magnetic force on the wire?
3.2 — A Battery Of Emf 10 V And Internal Resistance 3 Ω Is Connected To A
Physics Class 11 · Chapter 3
3.2 A battery of emf 10 V and internal resistance 3 Ω is connected to a resistor. If the current in the circuit is 0.5 A, what is the resistance of the resistor? What is the terminal voltage of the battery when the circuit is closed?
📋 Question Details
- Chapter
- Magnetic Effects of Current
- Topic
- Motion in a magnetic field
- Year
- 2021
- Shift
- 25 Jul Shift 2
- Q Number
- Q16
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 4: Moving Charges and Magnetism
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