Home
Class 12
PHYSICS
A 100 Omega resistor is connected to a 2...

A `100 Omega` resistor is connected to a 220 V, 50 Hz ac supply.
(a) What is the rms value of current in the circuit?
(b) What is the net power consumed over a full cycle?

Text Solution

Verified by Experts

Given, resistnace, R = 100 `Omega`
rms value of the voltage, `E_(rms)` = 220 V
Frequency, f = 50 Hz
(a) rms value of current in the circuit is
`I_(rms) = (E_(rms))/(R)`
`rArr " " I_(rms) = (220)/(100) = 2.2 A`
(b) Average power consumed over full cycle is
` P_(av) = E_(rms)I_(rms)`
= `220 xx 2.2`
`P_(av) `= 484 W
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise NCERT FILE ADDITIONAL EXERCISES|15 Videos

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise NCERT FILE EXEMPLAR PROBLEMS Subjective Question (VERY SHORT ANSWER TYPE QUESTIONS)|13 Videos

  • ALTERNATING CURRENT

    MODERN PUBLICATION|Exercise TOUGH & TRICKY PROBLEMS|12 Videos

  • ATOMS

    MODERN PUBLICATION|Exercise Chapter Practice Test|16 Videos

Similar Questions

Explore conceptually related problems

A 44 mH inductor is connected to 220 V, 50 Hz a.c. supply. Determine rms value of current in the circuit.

A 44 mH inductor is connected to 220 V, 50 Hz a.c. supply. Determine the rms value of the current in the circuit.

Knowledge Check

  • A 44 mH inductor is connected to 220 V, 50 Hz ac supply. The rms value of the current in the circuit is

    A
    `12.8 A`
    B
    `13.6 A`
    C
    `15.9 A`
    D
    `19.5 A`

  • A 30 mu F capacitor is connected to a 150 V, 60 Hz ac supply. The rms value of current in the circuit is

    A
    `17 A`
    B
    `1.7 A`
    C
    `1.7 mA`
    D
    `2.7 A`

  • A 40 muF capacitor is connected to a 200 V, 50H ac supply. The rms value of the current in the circuit is, nearly:

    A
    2.05A
    B
    2.5A
    C
    25.1A
    D
    1.7A

    • Similar Questions

    Explore conceptually related problems

    A 44 m H inductor is conneted to 220 V, 50 Hz a.c. supply. Determine the r.m.s. value of currents in the circuit.

    A 60 muF capacitor is connected to a 110 V, 60 Hz a.c. supply. Determine the rms value of the current in the circuit.

    A 200Omega resistor is connected to a 220 V, 50 Hz AC supply. Calculate rms value of current in the circuit. Also find phase difference between voltage and the current.

    A 40 micro F capacitor is connected to a 200V, 50 Hz ac supply. Rms value of current in circuit is nearly

    A coil of inductance 0.50 H and resistance 100 Omega is connected to a 240 V, 50 Hz AC supply. (a) What is the maximum current in the coil ? (b) what is the time lag between the voltage maximum and current maximum ?

    Home
    Profile