Chapter 1: Assignment 1 

For a Pdf version (printable) Chapter 1 Assignment1

 

Question 1:  

Calculate the amount of charge  represented by 12 million protons.

 Question 2 

Find Current , at t=0.5 sec when   q=10-5e-^2t mC

 Question 3: 

The current through  an elements is

                   5A,        0<t<1
I=              5t²A      t>1

Calculate the charge entering the element from  t=0, to t=2

Question 4 : 

Find power at t= 10  s, if the current entering  a circuit is

I=10cos60tπt  Ampere  and  v= 3 V

Question 5:

Find energy of   a 60 W bulb  consumed in 24 hour?

Question 6

. A current of 24 Ampere  flows through a conductor , calculate how much charge passes through it in 10 sec

Question 7 

Determine the total charge transferred over time  interval of    0<t<5, when i(t)=

Question 8.

The charge entering a terminal  is

q= 10sin120πt   mC   and   Voltage is   10cos 2πt

 Find power at 0.5 Sec

Calculate energy between 0.2 to 0.4 sec

 

 

Question 10. 

A sensor wire has a current of 20µA following through it.How long does it take for a charge of 55 C to pass through the wire?

Question 11. 

A  lightning bolt of  of  9KA  strikes a building for 10ms. Find how much charge is  accumulated by lightning bolt on building

Question 12 

. A lead-acid battery is rated at 180 Ah.

• What is the maximum current it can supply for 35?
• What will the life of battery in days if it produces 1 mA Current ?

 

Question 13 

. A 60W  lamp is operated on  120v. How many coulombs flow through the bulb in one day?

Question 14 .

What is current in a conductor if 1.441×10¹⁵ electrons pass through it in 0.25s?

Question 15 .

Find the number of electrons  that pass through a conductor in 1 when current is  100µA?

Question 17 .. How much current can a battery with the rating of 80 A-h supply continuously for 150 min?