A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω,…
A galvanometer has a resistance of 5Ω. By using a shunt wire of resistance 0.05Ω, the galvanometer could…
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In fleming’s right-hand rule, the thumb, the forefinger and the middle finger if held mutually…
In fleming’s right-hand rule, the thumb, the forefinger and the middle finger if held mutually at right angles…
Four cells each of e.m.f 1.5V and internal resistance of 4Ω are connected in parallel….
Four cells each of e.m.f 1.5V and internal resistance of 4Ω are connected in parallel. What is the…
A 3000W electric cooker is to be used on a 200V mains circuit. Which of…
A 3000W electric cooker is to be used on a 200V mains circuit. Which of the fuses below…
Which of the following electromagnetic waves is least energetic?
Which of the following electromagnetic waves is least energetic? A. Infra-red rays B. X-rays C. Ultra-violet rays D.…
Steel is more suitable for permanent magnet than iron because the former
Steel is more suitable for permanent magnet than iron because the former A. is easily demagnetized by shaing…
The velocities of light in air and glass are 3.0 x 108ms-1 and 2.0 x…
The velocities of light in air and glass are 3.0 x 108ms-1 and 2.0 x 108ms-1 respectively. If…
An astronomical telescope is said to be in normal adjustment when the
An astronomical telescope is said to be in normal adjustment when the A. eye is accommodated B. focal…
A man stands 4m in front of a plane mirror. If the mirror is moved…
A man stands 4m in front of a plane mirror. If the mirror is moved 1m towards the…
The inside portion of part of a hollow metal sphere of diameter 20cm is polished….
The inside portion of part of a hollow metal sphere of diameter 20cm is polished. The portion will…