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When number of turns in a coil is trippled, without any change in the length of coil, its self inductance becomes?
Answer: Option 1 L = inductance is proportional to the number of turns per unit length. So self inductance becomes three times. if turns in a coil is trippled, self...
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The property of coil by which a counter e.m.f. is induced in it when the current through the coil changes is known as?
Answer: Option 1 Let'
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The pressure coil of a wattmeter should be connected on the supply side of the current coil when?
Answer: Option 1 Let'
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The strain energy stored in a body, when suddenly loaded, is __________ the strain energy stored when same load is applied gradually.?
Answer: Option 4 Let'
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A simple pendulum of length / has an energy E, when its amplitude is A. If the length of pendulum is doubled, the energy will be?
Answer: Option 2 Let'
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A certain amount of current flows through a ring shaped coil with fixed number of turns. How does the magnetic induction B varies inside the coil if an iron core is threaded into coil without dimensional change of coil?
Answer: Option 2 Let'
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The bypass factor (B. P. F.) in case of sensible heating of air is (Where td₁ = Dry bulb temperature of air entering the heating coil, td₂ = Dry bulb temperature of air leaving the heating coil, and td₃ = Dry bulb temperature of heating coil)?
Answer: Option 2 The bypass factor (B. P. F.) in case of sensible heating of air is (td₃ - td₂)/(td₃ - td₁) Where, td₁ = Dry bulb temperature of air entering the...
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The bypass factor, in case of sensible cooling of air, is given by (where td₁ = Dry bulb temperature of air entering the cooling coil, td₂ = Dry bulb temperature of air leaving the cooling coil, and td₃ = Dry bulb temperature of the cooling coil)?
Answer: Option 2 The bypass factor, in case of sensible cooling of air, is given by (td₂ -td₃)/( td₁ -td₃) where td₁ = Dry bulb temperature of air entering the cooling...
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Directions : Each of the following question consists of a statement followed by two arguments I and II. You have to decide which of the arguments is a STRONG arguments and which is a WEAK Argument. Statement : Should India make efforts to harness solar energy to fulfil its energy requirements Arguments : I. Yes, Most of the energy sources used at present is exhaustible. II. No. Harnessing solar energy requires a lot of capital, which India lacks in.?
Answer: Option 1 Clearly, harnessing solar energy will be helpful as it is an inexhaustible resource unlike other resources. So, argument I holds. But argument II is vague as solar...
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A coil is wound on iron core which carries current I. The self-induced voltage in the coil is not affected by?
Answer: Option 2 Let'
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