Estimate the resistance R of the coils in a toaster
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 130-V source of potential difference (and the wire is at a temperature of 20.0°C), the initial current is 1.70 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its final operating temperature, the current has dropped to 1.53 A. (a) Find the power the toaster converts when it is at its operating...
20837731 A certain toaster has a heating element made of Nichrome resistance wire. When the toaster is first connected to a 140-V source of potential difference (and the Initial current is 1.80 A, but the current begins to decrease as the resistive element warms up. When the toaster reaches its firal the wire is at a temperature of 20.0 c), final operating temperature, the current has dropped to 1.53 A a) Find the power the toaster converts when it is...
What is the resistance of a toaster if 120 V produces a current of 3.0 A ?
No referring. What is the resistance of a toaster if 120 V produces a current of 5.0 A?
(I) What is the resistance of a toaster if 120 V produces a current of 4.6 A?
29.) What is the resistance of a toaster that draws a current of 12A when connected to a 120V circuit?
The resistance of the primary and secondary coils of a transformer are 71 and 12 Ohms, respectively. both coils are made from lengths of the same copper wire. The circular turns of each of the same diameter. Find the turns ratio N_s/N_p.
Chapter 21 Problems Problem 21.41 Problem 21.41 Your toaster has a power cord with a resistance of 2.2x10-2 n connected in series with a 9.9 Sn nichrome heating element. The potential difference between the terminals of the toaster is 120 V
Helmholtz coils are two circular coils with radius R, each wound with N turns of wire carrying a current I, circulating in the same direction in both coils. The coils are placed distance R apart. The Helmholtz coil produce a very uniform magnetic field in the region between them. Obtain an expression for the magnitude of the magnetic field at point P, which is midway between the coils.