Lens Problems In Physics -Multiple Choice Questions Quiz

Interactive MCQs on “Lens Problems In Physics”:

Solve the following 10 questions. Only one option is correct. Click on the “Submit” button when done. Click on the “embed” button to use this quiz on your website. Click on “WhatsApp” to share this quiz.

Question 1: What is the primary purpose of a power transformer?

(a) To generate electricity
(b) To transmit electricity over long distances
(c) To step up or step down voltage levels
(d) To store electrical energy

Question 2: What type of current is commonly used in power transformers?

(a) Direct current (DC)
(b) Alternating current (AC)
(c) Pulsating current
(d) Variable current

Question 3: A transformer that increases the voltage from the input (primary) side to the output (secondary) side is called a:

(a) Step-up transformer
(b) Step-down transformer
(c) Power factor transformer
(d) Distribution transformer

Question 4: A transformer that decreases the voltage from the input (primary) side to the output (secondary) side is called a:

(a) Step-up transformer
(b) Step-down transformer
(c) Power factor transformer
(d) Distribution transformer

Question 5: What is the main component that allows power transformers to transfer energy from the primary coil to the secondary coil?

(a) Iron core
(b) Copper wire
(c) Transformer oil
(d) Insulating material

Question 6: The turns ratio of a power transformer is 1:5. If the primary voltage is 1000 V, what is the secondary voltage?

(a) 100 V
(b) 500 V
(c) 2000 V
(d) 5000 V

Question 7: Which type of power loss occurs in a power transformer due to the resistance of the windings?

(a) Hysteresis loss
(b) Eddy current loss
(c) Copper loss
(d) Iron loss

Question 8: Which type of power loss occurs in a power transformer due to the alternating magnetization and demagnetization of the core material?

(a) Hysteresis loss
(b) Eddy current loss
(c) Copper loss
(d) Iron loss

Question 9: Which type of power loss occurs in a power transformer due to induced circulating currents in the core?

(a) Hysteresis loss
(b) Eddy current loss
(c) Copper loss
(d) Iron loss

Question 10: What is the main advantage of using power transformers in electricity transmission and distribution?

(a) Reduction of power loss
(b) Increase in power generation
(c) Increase in power consumption
(d) Reduction of power factor