Question

Define : i) Amplitude ii) Frequency iii) Time period iv) Angular velocity related to a.c.

Answer 1

i) Amplitude: The maximum value of attained by alternating quantity is called amplitude 

ii) Frequency : The total number of cycles per second. 

iii) Time period: The time (in sec) required by an alternating quantity to complete its one cycle is known as time period. 

iv) Angular velocity: The frequency of an alternating quantity expressed in electrical radians per second, is known as Angular velocity OR In AC cycle, rate of change of angle ωt with respect to time, is known as angular velocity

Answer 2

i) Frequency: It is defined as number of cycles completed by alternating quantity in one second. 

ii) Amplitude: A maximum value or peak value attained by an alternating quantity during positive or negative half cycle is called as its amplitude. 

Answer 3

1) Frequency: It is the number of cycles completed by an alternating quantity in one second. It is measured in cycles per second or hertz (Hz). 

2) Cycle: It the complete set of variation in the magnitude of an alternating quantity which is continuously repeated at regular interval of time. It consists of positive and negative half cycles. 

3) Time Period: It is the time required for an alternating quantity to complete one cycle. It is measured in second. 

4) Amplitude: It is the maximum value attained by an alternating quantity during its positive or negative half cycles.

Answer 4

i) Cycle :- A complete set of variation in an alternating quantity, which is repeated at regular interval of time, is called a cycle. 

OR 

A complete set of positive and negative values of an alternating quantity, which is repeated at regular interval of time, is called a cycle. 

ii) Frequency :- Number of cycles completed by an alternating quantity in one second is called as frequency. It’s unit is cycles/second or hertz. 

iii) Period :- The time taken by an alternating quantity to complete one cycle is called its time period or period. It’s unit is second. 

iv) Amplitude :- A maximum value or peak value attained by an alternating quantity during positive or negative half cycle is called as its amplitude.

Answer 5

i) Frequency:

 It is the number of cycles completed by an alternating quantity in one second.

ii) Time Period: 

The time (in sec) required by an alternating quantity to complete its one cycle is known as time period.