The current through a wire is measured as the potential difference Delta V is varied. What...
The potential difference between the two ends of a conducting wire is 20.0 V and the current through the wire is 4.00A. a) What is the resistance of the wire? b) How much power is being dissipated in the wire?
Find the uncertainty in a calculated electrical potential difference from the measurements of current and resistance. Electric potential difference depends on current and resistance according to this function V(I,R) = IR. Your measured current and resistance have the following values and uncertainties I = 3.3 Amps, delta I space equals space 0.9 Amps and R = 87.5 Ohms and delta R space equals space 0.8 Ohms. What is the uncertainty in the , delta V
You apply a potential difference of 4.3 V between the ends of a wire that is 2.2 m in length and 0.662 mm in radius. The resulting current through the wire is 17.6 A. What is the resistivity of the wire? (Give your answer in scientific notation using Ohm.m (Ω.m) as unit)
A potential difference of 100 V produces a current of 3.0 A in a certain resistor. (a) What is the resistance of the resistor? (b) What is the current when the potential difference is 25 V? Please show work.
A potential difference of 27.0 V is measured across a 4.50 ✕
103 Ω resistor.
9. [-/10 Points] DETAILS SERCP10 21.WU.002. A potential difference of 27.0 Vis measured across a 4.50 x 1032 resistor. (a) Determine the current through the resistor. A (b) Determine the power dissipated by the resistor. w
(Figure 1) is a current-versus-potential-difference graph for a cylinder. The plot shows the current as a function of the potential. The potential is measured from 0 to 100 volts on the x axis. The current is measured from 0 to 2 amperes on the y axis. The current increases linearly from the origin to 100 volts and 2 amperes. What is the cylinder's resistance? Part A What is the cylinder's resistance? 1 A) [ 0 / [ °0 50 AV...
When a potential difference of 12 V is applied to a wire 6.6 m long and 0.32 mm in diameter the result is an electric current of 2.1 A . What is the resistivity of the wire?
When a potential difference of 12 V is applied to a wire 6.6 m long and 0.33 mm in diameter the result is an electric current of 2.0 A . 1. What is the resistivity of the wire?
A potential difference of 5.0×10^-2 V is developed across a 10-cm-long wire as it moves through a magnetic field at 5.0 m/s. The magnetic field is perpendicular to the axis of the wire. What is the strength and direction of the magnetic field? Please note: The magnetic field is perpendicular to BOTH the axis of the piece of wire AND to the DIRECTION OF MOTION.
3. A potential difference of 12 V s found to produce a current of 0.40 A in a 3.2 m length of wire with a uniform diameter of 0.80 cm. a) What is the value of the resistivity of the wire, and b) the resistance of the wire? Equations that are appropriate for this exam. If you use an equation, variable, etc. that is not listed below, you need to show the complete derivation of the alternate for credit. 1/Rp...