Question

The two plates of a parallel plate capacitor
each having area A=400cm2

are given
charges 7.7microC and –1.1microC then the force
exerted per unit area on any one plate will
be:
(1) 13.25 × 102
N/m2
(2) 6.8 × 102
N/m2
(3) 27.50 × 102
N/m2
(4) 38.5 × 102
N/m2

Answer 1

Answer:

Clearly as seen in the Pie Chart,

Savings =15%

House Rent =10%

Transport =5%

Education for Children =15%

Food =25%

Clothes =10%

Other =20%

Let Total Monthly Income of Family be x

Monthly Savings =15% of x =Rs.3000

⇒

100

15

×x=3000

⇒x=Rs.20000

Monthly Expenditure on Clothes =10% of Total Income

=

100

10

×20000

=Rs.2000