resistance to the flow of current?

Q: What happens to the brightness of light bulb when the current flowing through it increases?

A: The bulb's brightness depends on the input power. If the power input to a bulb increases, the…

Q: Name the factors on which the heat produced in a wire depends when current is passed in it.

A: Write the joule’s equation of electric heating.

Q: Is it less expensive to operate the electric heating unit of 5 kW on 240 V than on 120 V?

A: The simple answer is that they cost almost the same to operate or are only a few dollars apart. Most…

Q: Why does current travel at 400,000V through the national grid?

A: To describe Why Current travels at 400,000 V through National grid

Q: What quantity is defined as the amount of current flowing past a certain point in a given amount of…

A: Current is defined as the amount of the charge passed through a certain point in a given amount of…

Q: What energy conversion does take place during the working of a dc current?

A: The conversion of electric energy into mechanical energy is done by DC motors whereas AC generators…

Q: How does the resistance of a wire vary with its area of cross-section?

A:

Q: Why is three wire system used in industries?

A: In the industries the heavy machineries are used which have the body made by iron.

Q: What happened to current when resistance is increased

A: Given : What happened to current when resistance is increased?

Q: What happens to the brightness of light bulb when the current flowing through it decreases?

A: The brightness of a bulb depends on its power.Write the expression for power

Q: What is the nature of relationship between force and current?

A: Force is something which is experienced by an object or group of objects exerted by other. Current…

Q: current flows

A:

Q: 125 V 20 Q 100 Q 50 Q

A: Given data:  Three resistors are connected in parallel  R1 = 20 Ω, R2 = 100 Ω and R3 = 50 Ω…

Q: Name the law which relates the current in a conductor to the potential difference across its end

A:

Q: What are the Properties of Alternating Current?

A: The properties of alternating current are: Frequency is denoted by f and is defined as the number…

Q: What is the difference between direct current and alternating current?

A: The direct current is obtained by  a battery or cell. The alternating current is obtained by the…

Q: Why are copper and aluminium wires usually employed for electricity transmission?

A:

Q: On which factors does the current flowing through the wire depends?

A: The current flowing through the wire means the charge is flow with time. And when charge flows that…

Q: Find out what sort of wire you're dealing with and how it differs from others.

A: In order to determine what sort of wire you are dealing with and how it differs from others, you…

Q: What is the effect on the current in a wire if both the voltage across it and its resistance are…

A: Ohm’s law is given by

Q: What is required for current to flow in a circuit? (Don’t overthink this question)

A: solution is given by

Q: 44. A metal ramp 6.00 m long is tilted 10.0° and is used to load and unload a moving van. Suppose a…

A: Solution-a) Calculating the height of the ramp:We know the length (L) of the ramp is 6.00 m and the…

Q: When does an electric short circuit occur?

A: A common kind of short circuit happens when a battery's positive and negative terminals are attached…

Q: The frequency of direct current is _____________   A) Zero B) 50 HZ C) 60 HZ D) 100 HZ

A: Direct current is the unidirectional flow electrons. Electrochemical cells are the examples of DC…

Q: What is created when a current flows through a wire?

A: Electric current flows

Q: When you touch your fingers (resistance 1000 Ω) to the terminals of a 6-V battery, show that the…

A: The current is given by,