SATHEE: Electro Magnetic Induction And Alternating Currents Question 92

Electro Magnetic Induction And Alternating Currents Question 92

Question: In an ac circuit, the instantaneous values of e.m.f. and current are e = 200 sin 314 t volt and $i = \sin, (314 t + \frac{π}{3})$ ampere. The average power consumed in watt is [NCERT 1990; RPMT 1997]

Options:

A) 200

B) 100

C) 50

D) 25

Show Answer

Answer:

Correct Answer: C

Solution:

$V_{r m s} = \frac{200}{\sqrt{2}}, i_{r m s} = \frac{1}{\sqrt{2}}$
$∴ P = V_{r m s} i_{r m s} \cos φ = \frac{200}{\sqrt{2}} \frac{1}{\sqrt{2}} \cos \frac{π}{3} = 50 w a t t$

Electro Magnetic Induction And Alternating Currents Question 92

Question: In an ac circuit, the instantaneous values of e.m.f. and current are e = 200 sin 314 t volt and $i = \sin, (314 t + \frac{π}{3})$ ampere. The average power consumed in watt is [NCERT 1990; RPMT 1997]

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Electro Magnetic Induction And Alternating Currents Question 92

Question: In an ac circuit, the instantaneous values of e.m.f. and current are e = 200 sin 314 t volt and i=sin,(314t+π3) ampere. The average power consumed in watt is [NCERT 1990; RPMT 1997]

Options:

Answer:

Solution:

Engineering Preparation

Medical Preparation

NCERT Books & Solutions

Important Resources

Other Resources

Syllabus

Test Platform

Sample Mock Test

Mentorship

NCERT Exercise Video Solution

Menu

Question: In an ac circuit, the instantaneous values of e.m.f. and current are e = 200 sin 314 t volt and $i = \sin, (314 t + \frac{π}{3})$ ampere. The average power consumed in watt is [NCERT 1990; RPMT 1997]