## Explain light-emitting diode, Electrical Engineering

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Q. Explain Light-emitting diode?

This is a reliable, rugged, and inexpensive semiconductor display device requiring about 10 mA of current flow for full illumination. An LED is shown in Figure. It is available in red, yellow, or green color, in common sizes of T-1 and T-1¾, where the number after the T denotes the diameter of the lamp in units of eighths of an inch. Two-color LEDs are also available. tutorials

#### Effect of frequency - stepper motor , Effect of Frequency a.From equa...

Effect of Frequency a.From equation for given  H p and μ P v α √f b.From  equation the depth of penetration for a given  material δ α 1/ √f c.From  equation hyst

#### Newton''s laws of motion in terms of particle motion, 1. Sum of forces is z...

1. Sum of forces is zero velocity remains constant.[If the particle is initially at rest, it will remain at rest for as long as the sum of the forces is zero]. 2. Sum F of for

#### Objective of long-term plans for technical loss reduction, Objective of Lon...

Objective of Long-Term Plans for Technical Loss Reduction The primary objectives of strengthening and improvement of sub-transmission and distribution system in the long-term

#### Determine the base current, Q. A transistor has a base current i B = 25 µA...

Q. A transistor has a base current i B = 25 µA, α = 0.985, and negligible ICBO. Find β, iE, and i .

#### Find appropriate values of sampling rate - nyquist rate , 1. Find the Nyqu...

1. Find the Nyquist rate for the following signals: (a) x(t) = 5 sin 3000Πt cos 4000Πt (b) A binary channel with bit rate 36000 bps is available for PCM voice transmission.

#### Earthing in electricity and gas hazards, Earthing : Any electrical applian...

Earthing : Any electrical appliance with a metal casing or with metal parts, likely to be touched by an operator is potentially dangerous. The danger is that an internal or extern

#### Hot line maintenance, how do you define the expertise for this hot line mai...

how do you define the expertise for this hot line maintenance?

#### Explain the or gates - microprocessor, Explain the OR Gates - microprocesso...

Explain the OR Gates - microprocessor? The OR GATE has high or logic 1 output if any of the inputs are high. The output Q is true if input A OR input B is true (or both of t

#### Switching characteristics - power semiconductor devices , Switching Charac...

Switching Characteristics Switching  characteristics are also know  as dynamic or transient characteristics these  characteristics give  the information  about the  time  varia  