MHT CET202016 Oct 2020Evening ShiftPhysicsAlternating CurrentActual
A step-up transformer has 300 turns of primary winding and 450 turns of secondary winding. A primary is connected to 150 volt and the current flowing through it is 9 ~A . The current and voltage in the secondary are
Options
- A13.5 ~A , 225 ~V
- B13.5 ~A , 100 ~V
- C4.5 ~A , 100 ~V
- D6.0 ~A , 225 ~V
Correct answer
D. 6.0 ~A , 225 ~V
Step-by-step solution
6.0 A, 225 V Given that, number of turns in primary winding, N_ p =300 Number of turns in secondary winding, N_ S =450 Primary voltage, V _ p =150 ~V Primary current, I_ p =9 ~A For step-up transformer, array l V_ S V_ P = N_ S N_ P V_ S 150 = 450 300 V_ S = 450 300 150 V_ S =225 ~V array array l Again, V _ p I _ p = V _ s I _ S 150 9=225 I _ S I _ s = 1350 225 =6.0 ~A array