Question

send me aome numerical based on electricity☺☺​

Answer 1

2. $\huge \bigstar \boxed{ \bf\red {answer}} \bigstar$
3. Two bulbs have rate 100W, 220V,60W,220V respectively. which one has a greater resistance.
4. calculate the resistance of 1km long copper wire of radius 1mm.
5. how much work is done in moving 4C accros. two poiny having pd.10v
6. how much energy is given to each coulomb of charge passing through a 9v battery.
7. 100 j of work is done in moving a charge of 5C from one terminal of battery from another. what is the potential difference of battery.
8. calculate the current and resistance of 100W,200V electric bulb.
9. calculate the power rating of heater could when used on 220V supply talking 5Amps.

• how many current pass through a lamp in 1minute if the current be 220mA?

Answer 2

Answer:

Question 1

A wire of length 3 m and area of cross-section 1.7 × 10-6 m2 has a resistance 3 × 10-2 ohm.

a. What is the formula for resistivity of the wire and what is the unit of it

b. Calculate the resistivity of the wire

Question 2

There are m resistor each of resistance R. First they all are connected in series and equivalent resistance is X. Now they are connected in parallel and equivalent resistance is Y.  What is the ratio of X and Y?

Question 3

An electric bulb draws a current of .8 A and works on 250 V on the average 8 hours a day.

a. Find the power consumed by the bulb

b. If the electric distribution company changes Rs 5 for 6 KWH, what is the monthly bill for 60 days

Question 4

How can three resistors of resistances 2 Ω, 3 Ω and 6Ω be connected to give a total resistance of (a) 4 Ω, (b) 1 Ω?

Question 5

What is (a) the highest, (b) the lowest total resistance that can be secured by combinations of four coils of resistances 4 Ω, 8 Ω, 12 Ω, 24 Ω?

Question 6

An electric motor takes 5 A from a 220 V line. Determine the power of the motor and the energy consumed in 2 h.

Question 7

An electric lamp of 100 Ω, a toaster of resistance 50 Ω, and a water filter of resistance 500 Ω are connected in parallel to a 220 V source. What is the resistance of an electric iron connected to the same source that takes as must current as all three appliances and what is the current through it?

hope these questions will help you on your studies and I know that you can solve these questions because you are intelligent