"If the time duration of power supply is increased, then the electrical energy will be (keeping Resistance and voltage fixed)" Increased Decreased Same None of these

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: Find the resistance that must be placed in series with a 25.0-Ω galvanometer having a 50.0-µA…

A: Given data: Resistance of galvanometer is, G=25.0 Ω. Sensitivity is, S=50 μA=50×10-6 A. Voltmeter…

Q: A person uses a 1.92 kW air conditioner for 10 hours and a 0.22 kW device for 4 hours. How much will…

A: Answer Energy consumption = power * time Given  1.92 kW  a/c for 10 hours 0.22 kW device for 4 hours…

Q: Whenever current flows through anything with an electrical resistance what happens?

A: When the electrons flow through the conductor, the ions of the conductor collide with the electrons,…

Q: An electric heater has a coiled metal wire which draws a current of 100 A. The resistance of the…

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Q: In which circuit do the three resistors have equal voltage drops but carry different current?

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Q: If you wish to decrease the power produced in a heating device two times, you could: double the…

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Q: 28. Two lightbulbs operate at 120 V, but one has a power rating of 100 W while the other has a power…

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Q: Short circuits occurs as a result of which of the following? currents stopping getting appliances…

A: The short circuit is a situation when the live wire is connected with the neutral wire. Due to the…

Q: Suppose you have a circuit in which you have connected 4 batteries, each of which has a voltage of…

A:

Q: A bird perched on a power line is not harmed, but if you are pruning a tree and your metal pole saw…

A: Human body and body of a bird is good conductor of electricity means electricity can flow through…

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: Of the following combination of units, the one that is not equal to the "watt" is O ampere-volt O…

A: The one is not equal to the "watt" is ohm squared /volt. Therefore, the correct option is C

Q: If the voltage is increased, then the electrical energy will be (keeping Resistance and time…

A: Required  effect on electrical energy due to increase the voltage keeping resistance and time fixed.

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

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Q: refer to this problem: Consider a battery with an emf of 25.0 V and an internal resistance of 0.233…

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Q: Does adding resistors in parallel increase or decrease the overall resistance of a circuit?

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Q: On which factors does the electric resistance depend?

A: The electric resistance depends on : 1. Cross section area of the conductor - Decreases with…

Q: If the Voltage is increased and the resistance stays the same, Current will Decrease Stay the same…

A: From Ohm's law V=IR Here, V is the voltage, I is the current and R is the resistance Voltage and…

Q: In parallel circuits is the same though out the circuit O current O resistance O voltage O none of…

A: In parallel circuits Voltage remains same throughout the circuit

Q: An air conditioner, 6400 watts, is used only 4 months out of a year. On a typical day it is used…

A: We first convert the wattage to kilowatts and then use hours operated everyday to find the number of…

Q: Why is it necessary to have an earth wire installed in a power circuit, but not in a lightening…

A: Power circuit carries high power and costly devices. If there is some unwanted power signal in the…

Q: If the voltage impressed across a circuit is held constant while the resistance doubles, what change…

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Q: If electrical power is transmitted over long distances, the resistance of the wires becomes…

A: The expression for the electrical power is,

Q: A 40 resistance wire is doubled by folding it, the new resistance is 10 20 30 None of these

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Q: To connect a pair of resistors so that their equivalent resistance will be less than the resistance…

A: The resistances are to be connected in parallel so it produces the equivalent resistance less than…

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: Two light bulbs both operate from 120 V. One has power of 25 W and the other 100 W. Which bulb has…

A: We know that power  P= V2/R Where R is resistance and V is voltage .

Q: Find the resistance that must be placed in series with a 25.0-Ω galvanometer having a 50.0-μA…

A:

Q: Suppose you have a circuit in which you have connected 3 batteries, each of which that has voltage…

A: Given data, The voltage of the battery, V=2.2 V Number of batteries, n=3

Q: what relation exist between a)voltage and current if resistance is kept constant b) voltage and…

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Q: How much units of energy is consumed in operating ten 50 watt bulbs for 10 hours per day in a month…

A: Given : n = 10  P = 50 Watt t = 10 hours

Q: Electrical resistance is measured in O volts O amperes O joules O watts none are correct

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Q: If two resistances are connect in series then the total (equivalent) resistance will be O less than…

A: When resistance connect in series , equivalent resistance will be equal to sum of all resistance…

Q: What happens when a lightbulb goes out?

A: Incandescent Bulb: The filament of an incandescent bulb is damaged (broken), thus breaking the…

Q: An electrical technician requires a capacitance of 2 µF in a circuit across a potential difference…

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Q: If the two unequal resistors are connected in parallel then the current in each resistor will be 1/2…

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Q: What change occur in the line current when more devices are introduced in a serial circuit?

A: Ohm's law states that "The current in a circuit is directly proportional to the voltage established…

Q: Which is true about current in a parallel circuit? It is produced by resistance, It divides among…

A: "Since you have asked multiple questions, as per Bartleby instructions, we will solve the first…

Q: While repairing an electric bulb socket, an clectrician gets a mild shock when a current of. 0.005 A…

A: In the initial case, the resistance of the electrician is R=VI=120V0.005A=24000Ω

Q: We are often advised to not flick electric switches with wet hands, dry your hand first.We are also…

A: We are often advised to not flick electric switches with wet hands, dry your hand first. Reason:…

Q: Under what conditions would increasing a voltage have no effect on the current moving through a…

A: The relation between the voltage , resistance and current is given by Ohm's law as follows:V = IR…

Q: How does joule heat vary with increasing and decreasing resistances?

A: When a current pass across a resistance the heat dissipated across the resistance is given by:H =…

Q: What are the two major hazards of electricity?

A: An electric hazard is a condition when one can or does make electrical contact with energized…

Ohm's law

Ohm’s law is a prominent concept in physics and electronics. It gives the relation between the current and the voltage. It is used to analyze and construct electrical circuits. Ohm's law states that the voltage across a conductor is directly proportional to the current flowing through it.

Path of Least Resistance

In a series of alternate pathways, the direction of least resistance is the actual or metaphorical route that offers the least resistance to forwarding motion by a given individual or body.