ELECTRONIC PRINCIPLES - TMA2

Physics (Electronics)

Problem 1

Data

N= 400 turns

R=400 O

L=0.4 m

V=?

m.m.f. = 100 A.t

H=?

B=?

µr = 250

F=?

Area=10-3 m2

(=?

Solution

Battery voltage

I = 0.25 A

Since,

H in the iron core

B in the iron core

F in webers

Reluctance of the iron core

Problem 2

Charge stored

Data

V= 9V

C=100 µF

Q=?

Solution

Voltage across capacitors

Data

C1= 100 µF

C2= 50 µF

Q= 1C

V=?

Solution

Since C1 and C2 are connected in parallel,

Problem 3

Data

C= 100 µF

V=20 v

t= 5 s

I=?

Solution

Current delivered by the current source.

As it is known that,

Since,

Problem 4

Capacitance of a capacitor

Data

f= 1MHz

Xc =1000 O

C=?

Solution

Capacitance of a capacitor

Data

f=50 Hz

Xc should be <50 ?

C=?

Solution

Problem 5

Data

R = 10O

C = 10µF

f = 50Hz

VR= 10V

Solution

The voltage across ...