A circuit has resistance of 12- and an impedance of 15- The power factor of the circuit will be

The correct option is A 0.8Power factor = cosϕ = R Z #160; Where Z is the impedance #160; = 15 ( given ) and resistance = R = ...

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Byju's Answer

Standard XII

Physics

Thermal Expansion

A circuit has...

Question

A circuit has resistance of $12 Ω$ and an impedance of $15 Ω$ . The power factor of the circuit will be

0.8

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

0.4

No worries! We‘ve got your back. Try BYJU‘S free classes today!

1.25

No worries! We‘ve got your back. Try BYJU‘S free classes today!

0.125

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A 0.8
Power factor $= cos ϕ = \frac{R}{Z}$
Where $Z$ is the impedance $= 15 ($ given $)$
and resistance $= R = 12 ($ given $)$
Substituting value we get power factor $= 0.8$

Suggest Corrections

Similar questions

Q. A series AC circuit has a resistance of 4 Ω and a reactance of 3 Ω. The impedance of the circuit is

(a) 5 Ω
(b) 7 Ω
(c) 12/7 Ω
(d) 7/12 Ω

Q. The impedance of a series circuit consists of

3 Ω

resistance and

4 Ω

reactance. The power factor of the circuit is

A series RLC circuit contains resistance of 10Ω, an inductance of 0.2H and a capacitor of 100uF .. Its powered by a supply of 200V, 50Hz. Calculate the total circuit impedance, the circuits current, power factor and draw the voltage phasor diagram.

Suppose the circuit in Exercise 7.18 has a resistance of 15 Ω. Obtain the average power transferred to each element of the circuit, and the total power absorbed.

Q. A series circuit has an impedance of

60.0 Ω

and a power factor of

0.720

50.0 H z

. The source voltage lags the current. What circuit element, an inductor or a capacitor, should be placed in series with the circuit to raise its power factor?

Join BYJU'S Learning Program

A circuit has resistance of 12Ω and an impedance of 15Ω. The power factor of the circuit will be

The correct option is A 0.8Power factor =cosϕ=RZWhere Z is the impedance =15(given)and resistance=R=12(given)Substituting value we get power factor =0.8

A circuit has resistance of $12 Ω$ and an impedance of $15 Ω$ . The power factor of the circuit will be

The correct option is A 0.8
Power factor $= cos ϕ = \frac{R}{Z}$
Where $Z$ is the impedance $= 15 ($ given $)$
and resistance $= R = 12 ($ given $)$
Substituting value we get power factor $= 0.8$