356295
The output voltage of an ideal transformer, connected to a \(240\,V\) ac mains is \(24\,V\). When this transformer is used to light a bulb with rating \({24 {~V}, 24 {~W}}\), calculate the current in the primary coil of the circuit.
1 \(0.1\,A\)
2 \(0.2\,A\)
3 \(0.5\,A\)
4 \(0.4\,A\)
Explanation:
\({E_{P}=240 {~V}, E_{S}=24 {~V}}\), \(E_{S} I_{S}=24 {~W}\) Current in primary coil \({I_{P}=\dfrac{E_{S} I_{S}}{E_{P}}=\dfrac{24}{240}=0.1 {~A}}\)
PHXII07:ALTERNATING CURRENT
356296
In an ideal transformer, the turns ratio is \({\dfrac{N_{P}}{N_{S}}=\dfrac{1}{2}}\). The ratio \({V_{S}: V_{P}}\) is equal to (the symbols carry their usual meaning) :
1 \({1: 2}\)
2 \({2: 1}\)
3 \({1: 1}\)
4 \({1: 4}\)
Explanation:
According to transformer ratio, \({\dfrac{V_{S}}{V_{P}}=\dfrac{N_{S}}{N_{P}}=2: 1}\)
NEET - 2024
PHXII07:ALTERNATING CURRENT
356297
A step down transformer connected to an ac mains supply of 220 \(V\) is made to operate at 11 \(V\), 44 \(W\) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit ?
NEET Test Series from KOTA - 10 Papers In MS WORD
WhatsApp Here
PHXII07:ALTERNATING CURRENT
356295
The output voltage of an ideal transformer, connected to a \(240\,V\) ac mains is \(24\,V\). When this transformer is used to light a bulb with rating \({24 {~V}, 24 {~W}}\), calculate the current in the primary coil of the circuit.
1 \(0.1\,A\)
2 \(0.2\,A\)
3 \(0.5\,A\)
4 \(0.4\,A\)
Explanation:
\({E_{P}=240 {~V}, E_{S}=24 {~V}}\), \(E_{S} I_{S}=24 {~W}\) Current in primary coil \({I_{P}=\dfrac{E_{S} I_{S}}{E_{P}}=\dfrac{24}{240}=0.1 {~A}}\)
PHXII07:ALTERNATING CURRENT
356296
In an ideal transformer, the turns ratio is \({\dfrac{N_{P}}{N_{S}}=\dfrac{1}{2}}\). The ratio \({V_{S}: V_{P}}\) is equal to (the symbols carry their usual meaning) :
1 \({1: 2}\)
2 \({2: 1}\)
3 \({1: 1}\)
4 \({1: 4}\)
Explanation:
According to transformer ratio, \({\dfrac{V_{S}}{V_{P}}=\dfrac{N_{S}}{N_{P}}=2: 1}\)
NEET - 2024
PHXII07:ALTERNATING CURRENT
356297
A step down transformer connected to an ac mains supply of 220 \(V\) is made to operate at 11 \(V\), 44 \(W\) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit ?
356295
The output voltage of an ideal transformer, connected to a \(240\,V\) ac mains is \(24\,V\). When this transformer is used to light a bulb with rating \({24 {~V}, 24 {~W}}\), calculate the current in the primary coil of the circuit.
1 \(0.1\,A\)
2 \(0.2\,A\)
3 \(0.5\,A\)
4 \(0.4\,A\)
Explanation:
\({E_{P}=240 {~V}, E_{S}=24 {~V}}\), \(E_{S} I_{S}=24 {~W}\) Current in primary coil \({I_{P}=\dfrac{E_{S} I_{S}}{E_{P}}=\dfrac{24}{240}=0.1 {~A}}\)
PHXII07:ALTERNATING CURRENT
356296
In an ideal transformer, the turns ratio is \({\dfrac{N_{P}}{N_{S}}=\dfrac{1}{2}}\). The ratio \({V_{S}: V_{P}}\) is equal to (the symbols carry their usual meaning) :
1 \({1: 2}\)
2 \({2: 1}\)
3 \({1: 1}\)
4 \({1: 4}\)
Explanation:
According to transformer ratio, \({\dfrac{V_{S}}{V_{P}}=\dfrac{N_{S}}{N_{P}}=2: 1}\)
NEET - 2024
PHXII07:ALTERNATING CURRENT
356297
A step down transformer connected to an ac mains supply of 220 \(V\) is made to operate at 11 \(V\), 44 \(W\) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit ?
356295
The output voltage of an ideal transformer, connected to a \(240\,V\) ac mains is \(24\,V\). When this transformer is used to light a bulb with rating \({24 {~V}, 24 {~W}}\), calculate the current in the primary coil of the circuit.
1 \(0.1\,A\)
2 \(0.2\,A\)
3 \(0.5\,A\)
4 \(0.4\,A\)
Explanation:
\({E_{P}=240 {~V}, E_{S}=24 {~V}}\), \(E_{S} I_{S}=24 {~W}\) Current in primary coil \({I_{P}=\dfrac{E_{S} I_{S}}{E_{P}}=\dfrac{24}{240}=0.1 {~A}}\)
PHXII07:ALTERNATING CURRENT
356296
In an ideal transformer, the turns ratio is \({\dfrac{N_{P}}{N_{S}}=\dfrac{1}{2}}\). The ratio \({V_{S}: V_{P}}\) is equal to (the symbols carry their usual meaning) :
1 \({1: 2}\)
2 \({2: 1}\)
3 \({1: 1}\)
4 \({1: 4}\)
Explanation:
According to transformer ratio, \({\dfrac{V_{S}}{V_{P}}=\dfrac{N_{S}}{N_{P}}=2: 1}\)
NEET - 2024
PHXII07:ALTERNATING CURRENT
356297
A step down transformer connected to an ac mains supply of 220 \(V\) is made to operate at 11 \(V\), 44 \(W\) lamp. Ignoring power losses in the transformer, what is the current in the primary circuit ?