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What is the significance of the I-V curve for LEDs?
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A moving coil instrument gives full scale deflection of 24 mA. When a P.D. across if is 108 mV. Find the value of – (i) Series resistance for full scale deflection of 400 V. (ii) Find the power consumption.

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What is the significance of the time-current characteristic curve in overcurrent protection?

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What is the significance of a color coordinate system for LEDs?

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What is the significance of CRI (Color Rendering Index) for LEDs?

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State significance of earthing. Draw and explain pipe earthing. State the values of earth resistances for: (i) Substation (ii) Residential wiring (iii) H.T. Line (iv) L.T. Line.

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How does a MOSFET's I-V characteristic differ from that of a BJT?

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How does an SCR's I-V characteristic differ from that of a transistor?

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Draw symbols and V-I characteristics of the following devices: LASCR DIAC PUT SCS.

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Draw I-V characteristics of power transistor. Show different regions.

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Draw a neat labelling V-I characteristics of SCR and explain the region.

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Describe the following assembler directives with one example of each: (i) ORG (ii) DB (iii) EQU (iv) END (v) CODE (vi) DATA.

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Draw symbol of following: i) Earth Switch ii) Lightning arrester iii) Circuit breaker v) Isolator

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What is the significance of a LED's luminous intensity?

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What is the significance of a LED's peak wavelength?

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What is the significance of light distribution in LEDs?

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What is the formula for hysteresis loss in BH curve?

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A single phase wattmeter rated for 500 V; 5 A is having full scale deflection of 1000 watt. What is multiplying factor of the wattmeter?

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Draw and explain 'V' and 'inverted V curves' for synchronous motor.

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Plot the chronological load curve and load duration curve. Find the load factor of the plant and energy supplied by the plant in 24 hours.

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What is a torque-speed curve?
Answer : A **torque-speed curve** is a graph that shows the relationship between the torque (rotational force) and the speed (angular velocity) of a motor. It helps to understand how a motor's output ... have a linear relationship, while **AC motors** might have a different curve depending on their design....

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How do you calculate hysteresis loss from BH curve?

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