## Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of (i) 9 Ω, (ii) 4 Ω.

Q.11:- Show how you would connect three resistors, each of resistance 6 Ω, so that the combination has a resistance of (i) 9 Ω, (ii) 4 Ω.   Answer:- (i) Two resistors…

## How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line?

Q.10:- How many 176 Ω resistors (in parallel) are required to carry 5 A on a 220 V line?   Answer:- For x number of resistors of resistance 176 Ω, Here Supply voltage, V =…

## A battery of 9 V is connected in series with resistors of 0.2 Ω, 0.3 Ω, 0.4 Ω, 0.5 Ω and 12 Ω, respectively. How much current would flow through the 12 Ω resistor?

Q.9:- A battery of 9 V is connected in series with resistors of 0.2 Ω, 0.3 Ω, 0.4 Ω, 0.5 Ω and 12 Ω, respectively. How much current would flow through…

## When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor.

Q.8:- When a 12 V battery is connected across an unknown resistor, there is a current of 2.5 mA in the circuit. Find the value of the resistance of the resistor….

## The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor

Q.7:- The values of current I flowing in a given resistor for the corresponding values of potential difference V across the resistor are given below − I (Amperes) 0.5 1.0 2.0 3.0 4.0 V (volts) 1.6 3.4 6.7…

## A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 Ω m. What will bethe length of this wire to make its resistance 10 Ω? How much does the resistancechange if the diameter is doubled?

Q.6:- A copper wire has diameter 0.5 mm and resistivity of 1.6 × 10–8 Ω m. What will bethe length of this wire to make its resistance 10 Ω? How much…

## How is a voltmeter connected in the circuit to measure the potential difference between two points?

Q.5:- How is a voltmeter connected in the circuit to measure the potential difference between two points?   Answer:- A voltmeter must always be connected in parallel to measure the potential…

## Two conducting wires of the same material and of equal lengths and equal diametersare first connected in series and then parallel in a circuit across the same potentialdifference.

Q.4:-  Two conducting wires of the same material and of equal lengths and equal diameters are first connected in series and then parallel in a circuit across the same potential…