Question
Who wrote the famous book 'A Brief History of
Time'?Solution
'A Brief History of Time' was written by physicist Stephen Hawking, exploring concepts of cosmology for a general audience.
What happens to resistance of a wire when its length is doubled (keeping area constant)? Â
Fog is an example of –
A capacitor of 4 µF is charged to 100 V. It is then connected across an uncharged 2 µF capacitor. Final common voltage is:
A closely wound solenoid 40 cm long has 5 layers of windings of 400 turns each. The diameter of the solenoid is 2 cm. If the current carried is 8.0 A, e...
The resistance of a wire is directly proportional to:
In the equation of motion (2as = v² - u²), (s) represents:
What is the magnitude of magnetic force per unit length on a wire carrying a current of 10 A and making an angle of 30° with the direction of a unif...
A metallic conductor of circular cross-section has radius R. If current density varies as J = Jₒ(1−r/R), the total current through the conductor is:...
Which of the following is NOT a conductor of electricity?
What is colour of light related to?
Relevant for Exams:
