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Electromotive Force: (emf)
A force which derives the electric current is known as electromotive force.
OR
The energy needed to drive the charge around the circuit is known as the electromotive force.
Current flowing in a certain PN junction at room temperature is 2 X 10 -7 A, when a large reverse bias voltage is applied. Calculate current when a forward voltage of 0.1 V is appl
A car of mass 1.35 x 10 3 kg sits on a large piston that has a surface area of 1.23 m 2 . The large piston is linked to a small piston of area 144 cm 2 . What is the weight
The variable resistor is a resistor whose value can be accustomed by turn a shaft or sliding a control. They are also referred to as potentiometers or rheostats and permit the resi
A high voltage applied to a gas discharge tube having neon gas at very low pressure causes a current to flow through the tube. Which particles that flow towards the cathode?
Demonstrating the cause of difference in length of day and night in some places:- Use the similar apparatus as in 6 above. Mark a circle on the ball around its centre to show t
Can you explain thermistor? Write short notes on back emf and internal resistance of a cell.
The argument reveling that tachyons (must they exist, of course) cannot carry an electric charge. For a (imaginary-massed) particle travelling quicker than c, the less energy the t
Cosmological constant; Lambda The constant introduced towards the Einstein field equation, planned to admit static cosmological solutions. During current philosophical view wa
(a) State the postulate of STR and deduce Lorentz Transformation. OR Give basic postulate of special theory of relativity. Derive Lorentz Transformation equations. (b) Pro
calculating the distance in effective handle.
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