Home
Class 12
PHYSICS
Transformer is a device used to increase...

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy.
In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be `N_1` and `V_1`, then the output voltage at the two terminals of the secondary coil `V_2=V_1.N_2/N_1`, where `N_2` is the number of turns in the secondary coil .
In the above mentioned transformer the input and output currents are respectively.

A

100 mA,100mA

B

200 mA,200mA

C

100mA,200mA

D

200mA,100mA

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Integer Answer Type)|8 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise EXAMINATION ARCHIVE WITH SOLUTIONS (WBCHSE)|20 Videos

  • ALTERNATING CURRENT

    CHHAYA PUBLICATION|Exercise ENTRANCE CORNER (Matrix match type)|5 Videos

  • CHHAYA PUBLICATION|Exercise EXAMPLE|1 Videos

  • ATOM

    CHHAYA PUBLICATION|Exercise CBSE SCANNER|18 Videos

Similar Questions

Explore conceptually related problems

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy. In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be N_1 and V_1 , then the output voltage at the two terminals of the secondary coil V_2=V_1.N_2/N_1 , where N_2 is the number of turns in the secondary coil . In question (i) if the input power of the transformer be 44 W, then output power is

Transformer is a device used to increase or decrease the voltage in the transmission line according to requirement, Generally the input line voltage is fed in a primary coil and the output line voltage is obtained from the terminals of another coil In an ideal transformer, the primary and secondary coils are linked is such a way that there is no loss of magnetic flux and electrical energy. In an ideal transformer, if the number of turns and input voltage across the terminals of the primary coils be N_1 and V_1 , then the output voltage at the two terminals of the secondary coil V_2=V_1.N_2/N_1 , where N_2 is the number of turns in the secondary coil . The ratio of number of turns of the primary and secondary coils of an ideal transformer is 2:1 IF the input voltage is 440 V, then output voltage is if the input power of the transformer be 44 W, then output power is In the above mentioned transformer the input and output currents are respectively.

In a non -ideal transformer the primary and secondary voltages and currents are V_1,I_1 and V_2,I_2 respectively. The efficiency of the transformer is

The turns ratio of an ideal transformer is 1:n. the input to output power transfer ratio is

An ideal transformer is used to decrease an alternating voltage from 880 V and 220 V. If the number of turns of its primary coil is 4000, then what is that in the secondary coil?

In an ideal transformer, number of turns in the primary and secondary are N_1 and N_2 , current and power in the input and output are I_1,I_2 and P_1,P_2 respectively. Then

The turns ratio of an ideal transformer is 4:1 what will be the current in the secondary if that in the primary is 1.2A?

A transformer is active between the voltage 230V. If the turn ratio of coils in primary and secondary coil 1:10 then what is the current is primary coil if the secondary coil has current 2A?

The mutual inductance between two adjacent coils is 1.5 H. If the current in the primary coil changes from 0 to 20 A in 0.05 s, determine the average emf induced in the secondary coil. If the number of turns in the secondary coil is 800, what change in flux will be observed in it?

The general equation for the instantneous voltage of a 50 Hz generator with peak voltage 220 V is