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1. Work out the voltage for the following arrangement of 1.5V cells: (to achieve a pass grade, solve problems with cells in series, parallel and series-parallel)
2. Calculate the unknown values in the following table: (to achieve a pass grade, solve problems to find current, voltage, resistance or power using ohm's law)
Current (A)
Voltage (V)
Resistance (?)
Power (W)
3
12
5
500
0.02
2700
Why do potential barriers breaks when a breakdown voltage is application to semiconductor
Q. Explain working of Single-Phase Induction Motors? For reasons of simplicity and cost, a single-phase power supply is universally preferred for fractional-horsepower motors.
DC chopper This is one stage conversion device which is used for direct conversion of fixed de voltage at a level to an adjustable dc voltage at another level.
Parity flag - Registers If after any arithmetical or logical operation if number of the accumulator are even parity flag (P) is set otherwise reset.
define source bias
(a) Explain what asynchronous transmission is and give two advantages and two disadvantages of using this type of transmission. (b) One of the goals of multiplexing is efficienc
Q. If a single phase motor fails to run or start slow what action to be taken. Ans: If it is not starting check the supply and test the winding if it found normal check
1. Why must a modem be used to transmit binary data through a PSTN? (1) Use sketches and additional text to describe the following modulation methods. (a) Amplitude shift key
Find the resistance of 800 m of copper cable of cross-sectional area 20 mm . Take the resistivity of copper as 0.02 Ωm.
What are the blocks of the microprocessor depends system? The blocks of the microprocessor depends system are: The Memory and I/O System The Data Operating System
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