Advertisements
Advertisements
प्रश्न
Tick (✓) the correct choice among the following :
There are 500 turns and 2000 turns in the primary and secondary coil of a
transformer respectively. If th e output voltage is 1000 V, how large is the
input voltage?
पर्याय
250 v
500 v
1000 v
2000 V
4000 V
Advertisements
उत्तर
250 v
APPEARS IN
संबंधित प्रश्न
Consider the circuit given below when A, B and C are three identical light bulbs of constant resistance.
(a) List the bulbs in order of increasing brightness.
(b) If C burns out, what will be the brightness of A now compared with before?
(c) If B burns out instead, what will be the brightness of A and C compared with before?
Define the term resistivity.
Find the potential difference required to pass a current of 0.2 A in a wire of resistance 20Ω
If a charge of 420 C flows through a conducting wire in 5 minutes what is the value of the current?
What is international convention of colour coding in a cable?
An electric oven is rated as 1.5 kW, 250 V. If it is connected to a 250 V mains, calculate the
(a) Current drawn,
(b) Energy consumed in 20 hours,
(c) Cost of energy consumed in 20 hours at the rate of Re. 1 per unit.
State whether the following statement is True or False:
The SI unit of charge is the coulomb.
What is meant by internal resistance of a cell?
Coulomb is the SI unit of ____________.
