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State whether the following statements are true or false:
(a) The purpose of a transistor amplifier is to enhance the frequency of the input signal.
(b) The gain of an amplifier is the ratio of the output signal amplitude to the input signal amplitude.
(c) The output characteristics of a transistor relate the collector current to the base current.
(d) If the load resistor value is increased the load line gradient is decreased.
(e) In a common-emitter amplifier, the output voltage is shifted by 180? with reference to the input voltage.
(f ) In a common-emitter amplifier, the input and output currents are in phase.
(g) The dynamic current gain of a transistor is always greater than the static current gain
A 2.0 kg tumor is being irradiated by a radioactive source. The tumor receives an absorbed dose of 12 Gy in a time of880 s. Each disintegration of the radioactive source produces a
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Regard as three resistors having three unique values of resistance. Presume the resistors are connected in parallel with each other. Additional suppose that the parallel combinatio
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The area element that seems in the integral is a vector. Area like an amount of coverage would appear to be a scalar quantity. What is the way of the area element ? Ans
Kinematics of Projectile Motion One of the powers of physics is its capability to use physics principles to form predictions about the final outcome of a moving object. Such pr
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how Michelson interferometer can be used to measure the wavelength of sodium light.
Demerits of Vacuum Diode over Semiconductor Diode (i) Bigger in size (ii) Less efficiency (iii) Expensive
A copper pot with mass 0.500 kg contains 0.170 kg of water ata temperature of 20.0ºC. A 0.250-kg block of iron at85.0ºC is dropped into the pot. Find the final temperature, assumin
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