The resistance of an electric heater is  70 Ω  when connected to 120 V. How much energy does it use during  45 min  of operation? j?

Q: 14.6-Ω resistor has a potential difference of 19.8 V across it. What current flows through the…

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Q: The resistance of an electric heater is  70 Ω  when connected to 120 V. How much energy does it use…

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Q: You have a circuit and you measure the current and find it is 9.51 micro A. You measure the…

A: Current, I = 9.51 μA = 9.51 x 10-6 A Voltage, V = 5.42 mV = 5.42 x 10-3 V Determine resistance R.

Q: resistors are connected in series with an 27.39 volt battery. The resistors have values of R1 = 1.60…

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Q: You connect five identical resistors in series to a battery whose EMF is 12.0 V and whose internal…

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Q: 3.0 A of electric current pass through a 4.0 Ω resistor. How many electrons pass through the…

A: The rate of change in charge is called electric current.Mathematically, I=qtBut q=neTherefore,…

Q: Three resistors are connected as shown below. R1 = 3.0 Ω, R2 = 6.0 Ω, and R3 = 8.0 Ω. The voltage…

A: I1 = 4.0 AExplanation:To solve the problem, we will first treat R1 and R2 as a single entity, R12,…

Q: The potential difference across a resistor in a particular electric circuit is 360 V. The current…

A: Given data:  Potential difference (V) = 360 V Current (I) = 10.0 A Required: Resistance (R)

Temperature Variance of Resistance

Electrical resistance or simply resistance is the property of a material that opposes the free flow of electrons through it. The total amount of resistance to the flow of charges (or current) is affected by many factors like the length of the conducting material, its cross-sectional area, resistivity, and temperature.