Home
Class 12
PHYSICS
An ideal choke takes a current of 8A whe...

An ideal choke takes a current of `8A` when connected to an a.c. source of `100` volt and `50Hz`. A pure resistor under the same conditions takes a current of `10A`. If two are connected in series to an `a.c.` supply of `100V` and `40Hz`, then the current in the series combination of above resistor and inductor is

A

`10A`

B

`8A`

C

`5sqrt(2)`amp

D

`10sqrt(2)`amp

Text Solution

Verified by Experts

`X_(L)=(100)/(8)`, `R=(100)/(10)=10Omega`
`Lxx100pi=(100)/(8)` or `L=(1)/(8pi)H`
`Z=sqrt(((1)/(8pi)xx2pixx40)^(2)+10^(2))=10sqrt(2)`
`I=(E)/(Z)=(100)/(10sqrt(2))=5sqrt(2)A`
Promotional Banner

Topper's Solved these Questions

  • ELECTROMAGNETIC INDUCTION

    FIITJEE|Exercise EXERCISE|9 Videos

  • ELECTROMAGNETIC WAVE & WAVE OPTICS

    FIITJEE|Exercise ASSIGNMENT PROBLEMS Objective : Level-II (MULTI CHOICE SINGLE CORRECT)|21 Videos

Similar Questions

Explore conceptually related problems

An ideal choke takes a current of 8A when connectd to an AC source of 100V and 50 Hz. A pure resistor under the same condition strikes a current of 10A. If two are connected in series to an AC supply of 100V and 40Hz, then the current in the series combination of above resistor and inductor sqrt(10x) A. Find value of x

An ideal choke coil takes a current fo 8 ampere when connected to an AC supply of 100 volt and 50 Hz . A pure resistor under the same conditions takes a current of 10 ampere. If the two are connected to an AC supply of 150 volts and 40 Hz then the current in a series combination of the above resistor and inductor is

An ideal choke takes a current of 10 A when connected to an ac supply of 125 V and 50 Hz. A pure resistor under the same conditions takes a current of 12.5 A. If the two are connected to an ac supply of 100 V and 40 Hz, then the current in series combination of above resistor and inductor is

An ideal choke takes a current fo 10 A when connected to an ac supply of 125 V and 50 Hz . A pure resistor under the same conditions take a current of 12.5 A . If the two are connected to an ac supply of 100 V and 40 Hz , then the current in series combination of above resistor and inductor is (10^(x))/(sqrt(2)) what is the value of x

An ideal inductor takes a current of 10 A when connected to a 125 V, 50 Hz AC supply, A pure resistor across the same source takes 12.5 A . If the two are connected in series across a 100 sqrt(2) V, 40 Hz supply, the current through the circuit will be

An inductor of inductance 2H and a resistance of 10 Omega are connected in series to an ac source of 1109 V, 60 Hz. The current in the circuit will be

A resistor of 50 ohm, an inductor of (20//pi) H and a capacitor of (5//pi) mu F are connected in series to an a.c. source 230 V, 50 Hz. Find the current in the circuit.

Find the maximum value of current when an inductance of one henry is connected to an a.c. source of 200 volts, 50 Hz