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Q. How can we increase the current sensitivity of a galvanometer?
The current sensitivity of a galvanometer is able to be increased by
(i) Rising the number of turns
(ii) Rising the magnetic induction
(iii) Rising the area of the coil
(iv) Declining the couple per unit twist of the suspension wire.
What are the pumping schemes? Pumping Schemes: a. Optical pumping through photons b. Electrical pumping through electric glow discharge/electric current/electron beam
What is meant by gravitational law?
A 5 kilogram mass is lifted at constant velocity from a shop floor by a rope that passes by a pulley attached to the shop's ceiling. Neglecting the mass of the rope and frict
How is that circuit wont be broken even there is an air gap in between the parallel plates? Ans) In AC circuit capacitor offers resistance to current as aresistor would do in DC.
1- Two researchers test the same hypothesis. Researcher A rejects the null hypothesis and researcher B fails to reject the null hypothesis. Discuss three reasons that could cause
The Coriolis effect is a deflection of moving objects when they are reflects in a rotating reference frame. In a reference frame with clockwise rotation, the deflection is to the l
A step-up transformer works on 220V and gives 2A to an external resistor. The turn ratio between the secondary and primary coils is 2 : 25. Assuming 100% efficiency, Determine the
Refraction law: For a wavefront travelling by a boundary among two media, the first along a refractive index of n 1 , and the other with one of n, the angle of incidence thet
How is Specific Gravity defined? Specific Gravity, SG, is a unit less quantity that provides the scientist or engineers an idea of how dense a substance is compared to water. T
If two soap bubbles of different radii are connected by a tube then, what happen? Ans) When these bubbles are joined through tube..the smaller bubble(with more pressure) gets its
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