Ask a Doubt
Request a call back

Join NOW to get access to exclusive study material for best results

CBSE Class 12-science Answered

The voltage and current in an ac circuit is given by What is the power dissipated?
Asked by Topperlearning User | 22 Jun, 2015, 10:57: AM
answered-by-expert Expert Answer
We know,
Answered by | 22 Jun, 2015, 12:57: PM

Concept Videos

Multiple Choice Questions Practice Test
Answered Unanswered My Questions My Answers
CBSE 12-science - Physics
The value of instantaneous voltage received from a.c. source is given by following equation, V = 200-?2 sin 314t volt, then find the root mean square value of the source?
Asked by divyanshsahu109 | 11 Mar, 2024, 17:57: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A motor drill draws 3.5 A current at the power line voltage 120 V(RMS). What is the motor's power if the current lags the voltage by 20 degrees?
Asked by arjunsah797 | 29 Mar, 2022, 07:25: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
A series LCR circuit with a 100 ohm resistor dissipates 80 W when attached to a 120 V, 60 Hz power line. What is the power factor?
Asked by arjunsah797 | 27 Mar, 2022, 20:00: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
The required no-load ratio in a 1 -phase 50 Hz core type transformer is 6000/250 V. Find the no. of turns in each winding if the flux is to be about 0.06 wbs.
Asked by saivardhanreddy15022003 | 11 Mar, 2022, 18:47: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
a horizontal straight wire 10m long extending from east to west is falling with a speed of 5m/s at right angles to the horizontal component of the earth magnetic field 0.30  
Asked by a_k_garg | 11 Oct, 2020, 10:38: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
Prove that an ideal inductor does not dissipate power in an A.C circuit.
Asked by rishicool0205 | 19 Aug, 2020, 14:20: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
The power factor varies between………………
Asked by rajneetverma11 | 16 Feb, 2020, 16:42: PM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
What will be the phase difference between the voltage and the current given power factor of an ac circuit is 0.5?
Asked by Topperlearning User | 22 Jun, 2015, 10:57: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
The voltage and current in an ac circuit is given by What is the power dissipated?
Asked by Topperlearning User | 22 Jun, 2015, 10:57: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
CBSE 12-science - Physics
On what factors does power in an ac circuit depend?
Asked by Topperlearning User | 22 Jun, 2015, 10:58: AM
ANSWERED BY EXPERT ANSWERED BY EXPERT
My Class Videos Tests ₹ Plans Ask a Doubt