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Worksheets

1B group 3 ETL

Total questions: 45

Worksheet time: 42mins

Name
Class
Date
1.

What is the adjustable capacitor?

(a)  

2.

  What capacitor gives high dielectric constant?

(a)  

3.

What capacitor offer much higher capacitance  values?

(a)  

4.

give one type of mica capacitor

(a)  

5.

What does the term "capacitor" mean?

(a)  

6.

What is the term used for the sum of the individual capacitance?

(a)  

7.

  What is used in indicating capacitors?

(a)  

8.

What  is the  fixed time interval that equals the product of the resistance and the capacitance in a series RC circuit?

(a)  

9.

  what another Important area is capacitors used?

(a)  

10.

What does computer memories use as basic storage element?

(a)  

11.

  Give the parts of plastic film Capacitors.

(a)  

12.

What are the 2 things to remember during charging and discharging?

(a)  

13.

3.𝜏=𝑅𝐶=(2.0𝑥106)(2.3𝑥106)=2.3𝑆3.𝜏=𝑅𝐶=(2.0𝑥106)(2.3𝑥10−6)=2.3𝑆   𝜏=𝑅𝐶=(2.0𝑥106)(2.3𝑥106)=2.3𝑆𝜏=𝑅𝐶=(2.0𝑥106)(2.3𝑥10−6)=2.3𝑆   A series circuit has a resistance of 5.2kΩ and a capacitance of 10 nF

(a)  

14.

  A series circuit has a resistance of 5.2kΩ and a capacitance of 10 nF

(a)  

15.

  A series circuit has a resistance of 2.0mΩ and a capacitance of 6.9 uF

(a)  

16.

1.    A comparator is a circuit that can determine if an input voltage exceeds a certain level. True or False.

(a)  

17.

an important specification for comparators because bias current can cause switching points to change if the current is in external resistors.

(a)  

18.

An averaging amplifier, which is a variation of a summing amplifier, can produce the positive value of the mathematical average of the input voltages. True or False

(a)  

19.

A different weight can be assigned to each input of a summing amplifier, forming a              by simply adjusting the values of the input resistors.

(a)  

20.

It can be used as a squaring circuit to produce a square wave from a sine wave

(a)  

21.

  In an integrating circuit the output must be?

(a)  

22.

   Differentiating amplifiers are most commonly designed to operate on triangular and rectangular signals? True or False.

(a)  

23.

  Differentiators is an application to low frequency voltage? True or False.

(a)  

24.

The oscillator using inductor and capacitor components is called as     .

(a)  

25.

Oscillators can be used to produce the waveforms at frequencies ranging from low to very high levels. True or False.

(a)  

26.

    It does not require any external components.

(a)  

27.

What configuration of the output is fed back to the negative or inverting input through a resistor

(a)  

28.

   2 resistors can be added on the positive pin to the operational amplifier circuit, what does it call?

(a)  

29.

A computer chip or circuit which performs mathematical integration.

(a)  

30.

A measure of the opposition to current flow in an electrical circuit.

(a)  

31.

A Circuit that contains both reactance and a capacitance.

(a)  

32.

Two laws are used in the analysis of RC circuit.

(a)  

33.

Having the form of the sine curve

(a)  

34.

Formula for determining the capacitive reactance.

(a)  

35.

The delay present in two waveforms.

(a)  

36.

What is the 5th step in determining the total current and phase angle?

(a)  

37.

What is it called? The total opposition to sinusoidal current. Unit is ohm.

(a)  

38.

What is the formula of the impedance of a series RC circuit

(a)  

39.

What is the phase angle between the source voltage and total current if the circuit is purely capacitive?

(a)  

40.

What current applies to sinusoidal wave or sine wave and why?

(a)  

41.

Compute for the Impedance

R= 20 Ω

  Xc= 50 Ω

(a)  

42.

Series RC Circuit

                R= 78 Ω

                Xc= 100 Ω

(a)  

43.

. Series RC Circuit

                R= 100 Ω

                Xc = 150 Ω

(a)  

44.

Parallel RC Circuit

                V= 30

                R= 313 Ω

                Xc= 98 Ω

(a)  

45.

Parallel RC Circuit

                V= 70

                R= 832 Ω

                Xc= 211 Ω

(a)