Advertisements
Advertisements
Question
What is the function of a step-up transformer?
One Line Answer
Advertisements
Solution
Function of a step-up transformer is to increase the a.c. voltage and decrease the current.
shaalaa.com
Is there an error in this question or solution?
APPEARS IN
RELATED QUESTIONS
Draw the electrical symbols of the following components and state its use
Wire crossing
What is the Flow of Charge Called?
If the current through a floodlamp is 5 A, what charge passed in 10 seconds?
(a) 0.5 C
(b) 2 C
(c) 5 C
(d) 50 C
State two characteristics of a fuse wire.
An electric bulb is rated at 220 V, 100 W. What is its resistance? What maximum current can be passed through it?
Name the physical quantity which equals the product of voltage and current.
Are switches connected in the neutral or live wire?
Describe two experiments to illustrate the production of electric current by electromagnetic induction. State the laws which determine the direction and magnitude of the induced current.
A bulb is connected to a battery of p.d. 4 V and internal resistance 2.5 Ω . A steady current of 0.5 A flows through the circuit. Calculate:
The resistance of the bulb
How is direction of current related to the direction of flow of electrons?
