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A kilowatt hour is the unit of
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Ohm’s law _______
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_______ will work only DC supply
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The direction of induced emf in a conductor can be determined by______.
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For inducing e.m.f. in a coil ______ is Necessary condition.
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Magnet field is caused by
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A capacitor opposes
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The heater element in an electric iron is______material.
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Potential difference has the unit of
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Specific-resistance of a substance is measured in____.
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An open switch has a resistance of
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Ohm’s law is not applicable to
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Which one of the following are not equivalent to watt
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If the circuit has high______ , Sparking occurs when a load is switched off.
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A field of force can exist between
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The cells are connected in series to
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The unit for inductance is _____.
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which is the right formula for inductance? ( having N number of turns)
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In the case of direct current
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lamps in street lighting are all connected in_____manner.
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why insulation provided to a current carrying conductor?
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If temperature rises the resistance of pure metals will
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The resistance(R) of a conductor inversely proportional to
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1 Coulomb charge equals the charge on
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The resistance of human body is around
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Material use in the filament of an electric bulb is
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Which of the following method can be used for absolute measurement of resistance?
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______has the least resistivity?
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Electric pressure is also called
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Which one is responsible for flow of current in solids?
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Which one of the following is not type of amplifier?
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How many types of basic electronic amplifier is avalible?
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The tail current in a differential amplifier is equal to
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For an Op-amp with -ve feedback, the o/p is
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Current cannot flow to ground through___
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The i/p stage of an Op-amp is usually a_____
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A common-mode signal is applied to_____
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The node voltage on the top of the tail resistor is
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The i/p offset current equals the
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The Op-amp can amplify
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A voltage follower
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Negative feedback
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With zero volts on both i/ps, an OP-amp preferably an o/p must be
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The common-mode gain is
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When a differential amplifier is operated single-ended,
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A differential amplifier
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In amplifier circuit, biasing of transistor is necessary to
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The arrangement in which voltage gain of transistor amplifier is lowest is
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The units of voltage gain is
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What is the o/p impedance of an emitter follower?
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An emitter follower has _______ i/p impedance
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Emitter follower is a_______ circuit
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What is the voltage gain of an emitter follower?
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Emitter follower is used for
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Negative feedback is employed in____
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if voltage feedback (-ve) is applied to an amplifier, its i/p impedance
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The gain of an amplifier with feedback is recognized as ______ gain
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A feedback circuit usually employs ________network
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The value of negative feedback fraction is permanently
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If -ve voltage feedback is give to an amplifier, its voltage gain
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