A bar magnet has magnetic dipole moment M. Its initial position is parallel to the direction of uniform magnetic field B. In this position, the magnitudes of torque and force acting on it respectively are – (a) 0 and MB(b) MB ...
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(a) The work done in Fig. (i) is the greatest.(b) The work done ...
A constant voltage is applied between the two ends of a uniform metallic wire, heat ‘H’ is developed in it. If another wire of the same material, double the radius and twice the length as compared to original wire is ...
(a) Sodium Hydroxide reacts with Hydrochloric acid to form Sodium Chloride and Water.(b) Barium Chloride reacts with liquid Sodium Sulphate to leave Barium Sulphate as a precipitate and also form liquid Sodium Chloride.
(a) Power = Force/velocity(b) Power = Force x Acceleration(c) Power = Force/Acceleration(d) Power = Force x Velocity
(a) 1.003 MHz and 0.997 MHz.(b) 3001 kHz and 2997 kHz.(c) 1003 kHz and 1000 kHz.(d) 1 MHz and 0.997 MHz.
(a) l and A increase.(b) l decreases and A increases.(c) l increases and A decreases.(d) both l and A decrease.
(a) Neutral(b) Base(c) Acid(d) Alkali
The measurement of an unknown resistance R is to be carried out using Wheat stones bridge. Two students perform an experiment in two ways. The first students takes R2 = 10Ω and R1 = 5Ω. The other student takes R2 ...