Transformer Quiz

What is the principle of operation of a transformer?

• Electromagnetic induction

• Gravitational force

• Nuclear fission

• Chemical reaction

Name the two main types of transformers.

• Left transformers and right transformers

• Old transformers and new transformers

• Step-up transformers and step-down transformers

• Big transformers and small transformers

What are the transformer equations used to calculate voltage, current, and turns ratio?

• The transformer equations are Vp/Vs = Np/Ns = Ip/Is

• Vp/Vs = Ns/Np = Ip/Is

• Vp/Np = Vs/Ns = Ip/Is

• Vp*Vs = Np*Ns = Ip*Is

Define efficiency in the context of transformers.

• Number of coils in the transformer

• Ratio of output power to input power

• Weight of the transformer

• Color of the transformer

What are the different types of losses in a transformer?

• Voltage losses and current losses

• Magnetic losses and resistance losses

• Steel losses and aluminum losses

• Iron or core losses and copper losses

Explain the concept of mutual induction in a transformer.

• Mutual induction is the process of amplifying the voltage in a transformer.

• Mutual induction is the process of converting mechanical energy into electrical energy in a transformer.

• Mutual induction is the process of generating electricity from magnets in a transformer.

• Mutual induction is the process where a changing current in one coil induces a voltage in a nearby coil, as in a transformer.

How does a step-up transformer work?

• By keeping the voltage and current the same between the primary and secondary coils.

• By converting voltage into current between the primary and secondary coils.

• By decreasing the voltage from the primary coil to the secondary coil, while increasing the current.

• By increasing the voltage from the primary coil to the secondary coil, while decreasing the current.

What is the significance of the turns ratio in a transformer?

• It determines the ratio of voltage between the primary and secondary coils.

• It determines the color of the transformer

• It decides the weight of the transformer

• It controls the temperature of the transformer

Discuss the importance of core material in transformer design.

• It determines the efficiency, performance, and cost of the transformer.

• It determines the size of the transformer

• It only affects the color of the transformer

• It has no impact on the transformer

Explain the concept of hysteresis loss in transformers.

• Energy loss caused by the resistance in the transformer coils

• Loss of energy due to friction in the transformer

• Energy loss due to the constant change in the magnetic field

• Loss of energy due to the fluctuation in the voltage supply