Electric Circuits Answers

1.   If three identical lamps are connected in series to a 6-V battery, what is the voltage drop across each lamp?

State and explain what happens to the alpha particle on entering the region of space with the uniform electric field?

2. A TV set, a stove, a flat iron are connected in series to a 220 V line. The resistance of the TV set is 20 ohms, the stove is 50 ohms and the flat iron is 35 ohms. Find the following;

(a) total resistance

(b) the amount of current flowing in each device

(c) the voltage drop across each device

1. A point charge q = 2.00μC is located at the origin. Find the electric potential due to this charge at point x = 4.0 m.

A. 1500V C. 3500V

B. 2500V D. 4500V

2. Two point charges are arranged along the x-axis; q₁-2.0 μC is at x=0.80m, and q2-2.0 μC at x=0.80m. The net electrical potential measured at the origin due to these point charges is

A. Zero C. 22500V

B. 4500V D. 45000V

1. A refrigerator and a rice cooker are connected in parallel to a 220 V line. The current in the refrigerator is 10 A and in the rice cooker is 4 A. Find the following;

(a) the resistance of each device

(b) the total resistance

(c) the current flowing in the line

find the potential gradient between two parallel plate conductor of separation 0.03 when potential difference of 540 supplied to them hence determine the force in an electron which club between the plates

a 200iC charge flows through conductor. if the p.d between its ends is 40mv, find the work done

A coil connected to a 220 V line is used to heat 500.0 g of water at 30°C. It is found out that after 5 minutes, the temperature of the water has risen to 80°C. What is the resistance of the coil? 

A coil connected to a 220 V line is used to heat 500.0 g of water at 30°C. It is found out that after 5 minutes, the temperature of the water has risen to 80°C. What is the resistance of the coil? 

A system is comprised with multiple bodies. These bodies hold some charges. The charges are q1, q2, q3 and q4 and the value charges are +5C, +10C, -2C, -15C respectively. Find out the net charge on the system.