The voltage turn ratio of step down transformer is:
Correct answer: C. 2:1
- A. 1:2
- B. 1:3
- C. 2:1
- D. 2:5
Explanation
A step-down transformer is designed to reduce the voltage of the input signal. The voltage turn ratio is defined as the ratio of the number of turns in the secondary coil to the number of turns in the primary coil. In a step-down transformer with a voltage turn ratio of 2:1, the number of turns in the secondary coil is half of the number of turns in the primary coil. This means that the output voltage is half of the input voltage. For example, if the input voltage is 120 volts, the output voltage will be 60 volts. So, a step-down transformer with a voltage turn ratio of 2:1 reduces the voltage of the input signal by a factor of two.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
About Electromagnetism
Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
Practise Electromagnetism
1,176 free Electromagnetism MCQs from Physics, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Physics questions like this
Physics is on 16 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electromagnetism questions
Two α-particles have the ratio of their velocities as 3 : 2 on entering the field. If they move in different circular paths, then the ratio of the radii of their paths is:
If a charged particle enters in a region where electric and magnetic field are parallel to its motion, then it will:
If the direction of the field and area vector is opposite then field is
The secondary turns of which of the following transformers is always kept closed for _ transformer.
Current carrying loop behaves like a
A solenoid 15.0 cm long has 300 turns of wire, and a current of 5 A flows through it. The magnitude of magnetic field inside the solenoid is: