$A$ transformer is a device which converts
- Alow voltage at low current into high voltage at high current
- Bhigh voltage at low current into low voltage at high current
- Chigh voltage at high current into low voltage at low current
- Delectrical power into mechanical power
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Similar Questions
$A$ transformer having an efficiency of $90 \%$ is working on a $200 \ V$ and $3 \ kW$ power supply. If the current in the secondary coil is $6 \ A$,the voltage across the secondary coil and the current in the primary coil respectively are:
MediumAIPMT 2014
View Solution$A$ transformer with a turns ratio $\frac{N_{1}}{N_{2}} = \frac{50}{1}$ is connected to a $120 \ V$ $AC$ supply. If the primary and secondary circuit resistances are $1.5 \ k\Omega$ and $1 \ \Omega$ respectively,find the power output (in $W$).
MediumAIIMS 2019
View SolutionIn a step-up transformer,$220 \, V$ is converted into $2200 \, V$. The number of turns in the primary coil is $600$. What is the number of turns in the secondary coil?
Easy
View SolutionIn a step-down transformer,the number of turns in:
The primary winding of a transformer has $100$ turns and its secondary winding has $200$ turns. The primary is connected to an ac supply of $120 \,V$ and the current flowing in it is $10 \,A$. The voltage and the current in the secondary are
Medium
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