Transformers
PHXII07:ALTERNATING CURRENT

356304 An ideal transformer has 500 and 5000 turn in primary and secondary windings respectively. If the primary voltage is connected to a \(6\;V\) battery then the secondary voltage is:

1 \(0\;V\)
2 \(60\;V\)
3 \(0.6\;V\)
4 \(6\;V\)
PHXII07:ALTERNATING CURRENT

356305 In the circuit shown the transformer is ideal with turn ratio \({\dfrac{N_{1}}{N_{2}}=\dfrac{5}{1}}\). The voltage of the source is \({V_{{s}}=300 {~V}}\).
supporting img
The voltage measured across the load resistance \({R_{l}}\) is 50 \(V\) . Find the value of resistance \({R(}\) in \({\Omega}\) ) in the primary circuit.

1 \(250\,\Omega \)
2 \(500\,\Omega \)
3 \(700\,\Omega \)
4 \(300\,\Omega \)
PHXII07:ALTERNATING CURRENT

356306 A step-up transformer operates on a 230 \(V\) line and a load current of 2 \(A\). The ratio of primary and secondary windings is 1 : 25. Then the current in the primary is

1 \(25\,A\)
2 \(50\,A\)
3 \(15\,A\)
4 \(12.5\,A\)
PHXII07:ALTERNATING CURRENT

356307 Transformer ratio of a step-up transformer is

1 greater than one
2 less than one
3 equal to 1
4 zero
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXII07:ALTERNATING CURRENT

356304 An ideal transformer has 500 and 5000 turn in primary and secondary windings respectively. If the primary voltage is connected to a \(6\;V\) battery then the secondary voltage is:

1 \(0\;V\)
2 \(60\;V\)
3 \(0.6\;V\)
4 \(6\;V\)
PHXII07:ALTERNATING CURRENT

356305 In the circuit shown the transformer is ideal with turn ratio \({\dfrac{N_{1}}{N_{2}}=\dfrac{5}{1}}\). The voltage of the source is \({V_{{s}}=300 {~V}}\).
supporting img
The voltage measured across the load resistance \({R_{l}}\) is 50 \(V\) . Find the value of resistance \({R(}\) in \({\Omega}\) ) in the primary circuit.

1 \(250\,\Omega \)
2 \(500\,\Omega \)
3 \(700\,\Omega \)
4 \(300\,\Omega \)
PHXII07:ALTERNATING CURRENT

356306 A step-up transformer operates on a 230 \(V\) line and a load current of 2 \(A\). The ratio of primary and secondary windings is 1 : 25. Then the current in the primary is

1 \(25\,A\)
2 \(50\,A\)
3 \(15\,A\)
4 \(12.5\,A\)
PHXII07:ALTERNATING CURRENT

356307 Transformer ratio of a step-up transformer is

1 greater than one
2 less than one
3 equal to 1
4 zero
PHXII07:ALTERNATING CURRENT

356304 An ideal transformer has 500 and 5000 turn in primary and secondary windings respectively. If the primary voltage is connected to a \(6\;V\) battery then the secondary voltage is:

1 \(0\;V\)
2 \(60\;V\)
3 \(0.6\;V\)
4 \(6\;V\)
PHXII07:ALTERNATING CURRENT

356305 In the circuit shown the transformer is ideal with turn ratio \({\dfrac{N_{1}}{N_{2}}=\dfrac{5}{1}}\). The voltage of the source is \({V_{{s}}=300 {~V}}\).
supporting img
The voltage measured across the load resistance \({R_{l}}\) is 50 \(V\) . Find the value of resistance \({R(}\) in \({\Omega}\) ) in the primary circuit.

1 \(250\,\Omega \)
2 \(500\,\Omega \)
3 \(700\,\Omega \)
4 \(300\,\Omega \)
PHXII07:ALTERNATING CURRENT

356306 A step-up transformer operates on a 230 \(V\) line and a load current of 2 \(A\). The ratio of primary and secondary windings is 1 : 25. Then the current in the primary is

1 \(25\,A\)
2 \(50\,A\)
3 \(15\,A\)
4 \(12.5\,A\)
PHXII07:ALTERNATING CURRENT

356307 Transformer ratio of a step-up transformer is

1 greater than one
2 less than one
3 equal to 1
4 zero
PHXII07:ALTERNATING CURRENT

356304 An ideal transformer has 500 and 5000 turn in primary and secondary windings respectively. If the primary voltage is connected to a \(6\;V\) battery then the secondary voltage is:

1 \(0\;V\)
2 \(60\;V\)
3 \(0.6\;V\)
4 \(6\;V\)
PHXII07:ALTERNATING CURRENT

356305 In the circuit shown the transformer is ideal with turn ratio \({\dfrac{N_{1}}{N_{2}}=\dfrac{5}{1}}\). The voltage of the source is \({V_{{s}}=300 {~V}}\).
supporting img
The voltage measured across the load resistance \({R_{l}}\) is 50 \(V\) . Find the value of resistance \({R(}\) in \({\Omega}\) ) in the primary circuit.

1 \(250\,\Omega \)
2 \(500\,\Omega \)
3 \(700\,\Omega \)
4 \(300\,\Omega \)
PHXII07:ALTERNATING CURRENT

356306 A step-up transformer operates on a 230 \(V\) line and a load current of 2 \(A\). The ratio of primary and secondary windings is 1 : 25. Then the current in the primary is

1 \(25\,A\)
2 \(50\,A\)
3 \(15\,A\)
4 \(12.5\,A\)
PHXII07:ALTERNATING CURRENT

356307 Transformer ratio of a step-up transformer is

1 greater than one
2 less than one
3 equal to 1
4 zero