UNIT 24 TEST

Question 0

the voltage dropped across the inductor in an RLC series circuit will lead the current by 90 degrees
true of faults

Answer 0

True

Question 1

The voltage drop across a resistor in a RLC series circuit will out of phase with the current
True of Faults

Answer 1

faults

Question 2

the voltage dropped across the capacitor in an RLC series circuit will lag the current by 90 degrees
true of faults

Answer 2

True

Question 3

Vector addition can be use in an RLC series circuit to fine value of total voltage,impedance and ————

Answer 3

Apparent power

Question 4

In RLC circuit, inductive and capacitive valve are are out phase with each other be how much———–adding them results in the elimination of the smaller value and a reduction of the larger value.

Answer 4

180 degrees

Question 5

LC resonant circuit increase the what————-at the resonant frequency.

Answer 5

current and voltage drop

Question 6

When do resonant occurs

Answer 6

Resonant occurs when inductive reactance and capacitive become equal.

Question 7

The rate of current increase is proportional to ———-

Answer 7

the Q of the circuit components.

Question 8

What is bandwidth

Answer 8

Bandwidth is determined by calculating the upper and lower frequencies at which the current reaches a valve of 0.707 of the maximum value.

Question 9

Bandwidth is —————————–of the components in the circuit.

Answer 9

inversely proportional to the Q

Question 10

What is the phase angle relationship of voltage and current dropped accross a pure resistance

Answer 10

Phase angle are in phase with each other

Question 11

What is the phase angle relationship of voltage and current dropped accross a inductor

Answer 11

180 degrees out of phase

Question 12

What is the phase angle relationship of voltage and current dropped accross a capacitor

Answer 12

180 degrees out of phase

Question 13

The total current in a parallel circuit is equal to the sum of the individual currents.

Answer 13

Vector addition must be used because the current through the resistive parts of the circuit is 90 Degrees out of phase with the current flowing through the inductive part

Question 14

The impedance of an RL parallel circuit can be calculated by using vector
.

Answer 14

addition to add the reciprocals of the resistance and inductive reactance

Question 15

Apparent power, true power, and reactive power add in any kind of a circuit.

Answer 15

Vector addition must be used, however, because true power and reactive power are 90 Degrees out of phase with each other.

Question 16

The circuit power factor is

Answer 16

the ratio of true power to apparent power.

Question 17

What is a parallel resonant circuits

Answer 17

In a parallel circuit, inductive current and capacitive current cancel each other because they are 180 Degrees out of phase with each other. circuits.

Question 18

LC parallel resonant circuits are often referred

to

Answer 18

Tank Circuit