Eamcet Physics - 2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents Free Online Tests | Mock Tests | Preparation | Practice Tests

Study Room

Goto

Eamcet Physics
2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents

Take Exam

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

18 / 40

The voltage of an a.c source varies with time according to the relation E = 120 sin 100 π t cos 100 πt. Then
i)the peak voltage of the source is 120 V
ii) the peak voltage = 60 V
iii) the peak voltage = 120/√2V
iv) the frequency of source voltage is 100 Hz

A. i) and ii) are correct

B. ii) and iii) are correct

C. ii) and IV) are correct

D. i) and iii) are correct

E. None of the above

View Answer

Correct choice: C

Explanation:

None

18 / 40

Study Room

Lessons

Eamcet Physics 2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents

Eamcet Physics
2 nd Year : Unit 4.1 ( Alternating Current ) - Alternating Currents