toaster is first connected to a 120 V source (20 ° C) the current is 1.8 A while the current is 1.53 A. Toast Find the end temperature of the resistance wire of the machine (0.4x10-3 (° C)

Q: How much current will an electric bulb draw from a 220 V source, if the resistance of the bulb…

A: (a) According to Ohm’s law.   Substitute, 220V for voltage, and 1200 ohm for resistance.

Q: The EMF of a cell falls from 3 volts to 2.8 volts when its terminals are joined to an electrical…

A: Given data, Emf of the cell (E) = 3 volts Terminal voltage on the cell (V) = 2.8 volts Resistor (R)…

Q: A large TV works properly under the voltage of 110 V with power P = 1940 W. (a)  Calculate the…

A:

Q: A resistor with resistance 28.5 Q is connected to the terminals of a voltage source. (a) Calculate…

A:

Q: A 2.0 kW heater element from a dryer has a length of 80 cm. If a 10 cm section is removed, what…

A:

Q: A certain toaster has a heating element made of Nichrome wire. When the toaster is first connected…

A: (a) 163.9 W(b) 322.0°CExplanation:Given:Voltage, V = 110 V (constant),Initial current, Iinitial​ =…

Resistivity

Resistivity is a characteristic property of the conductor’s material that measures the extent to which the material opposes the flow of current. It is denoted by the Greek letter “rho”. Electrical resistivity, also known as specific resistance, depends on the nature of the material of the conductor and is unaffected by its dimensions.