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Electronics questions

Electronics questions | form six Physics

Find Electronics examination questions, form six Physics in acaproso.com

# Question
1

Distinguish between inverting OP-AMP and non-inverting OP-AMP.


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2

Give one application of each type of OP-AMP (inverting OP-AMP and non-inverting OP-AMP).


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3

Figure4 shows the diagram of a non-inverting amplifier with input and output voltages.

Figure 4 shows the diagram of a non-inverting amplifier with input and output voltages.

  1. Determine the closed loop voltage gain, ​ Gain​ of the amplifier given that; Gain=1+R2/R1
  2. Use Figure 4 to show how the given expression in (i) is derived.

Mathematical Calculation
4

Identify three basic elements of a communication system.


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5

Why sky waves are not used for transmission of TV signals?


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6

Figure 5 shows the essential components of a transmitter for radio broadcasting.

Figure 5 shows the essential components of a transmitter for radio broadcasting.

What role does each of the components labelled A, B, C, D and E play to facilitate the
communication system?


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7

List two chief properties of semiconductors.


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8

Why is it easier to establish the current in a semiconductor than in an insulator?


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9

State a condition that could be employed to make an insulator conduct some electricity.


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10

Distinguish between conductors and semiconductors on the basis of their energy band
structures.


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