7. An electric heater is made of Nichrome wire. The wire has a resistance of 15.2 Ω at a temperature of 20°C. Determine the resistance of the Nichrome wire when the temperature of the wire is increased to 260°C. *Round off to 4 decimal digits

Consider the following circuit diagram. The potential difference across the battery is 40.0 volts, and it supplies a current of 5.00 amperes to the circuit. There is a current of of 2.70 amperes flowing through R1. Resistor R2 has a resistance of 5.50 ohms. What is the resistance of R3? Answer in ohms to two decimal places, but do not include units in your answer.

1. Two materials have different resistivities. Two wires of the same length are made, one from each of the materials. Is it possible for each wire to have the same resistance? Explain 2. Does the resistance of a copper wire increase or decrease when both the length and the diameter of the wire are doubled?

Diagram of the problem, necessary formulas, clearance and numerical solution. An electric light bulb is marked 40 W - 120 V. What is its resistance when it is lit from a 120 V source?

Resistance of Carbon A rectangular solid made of carbon has sides lying along the x, y, and z axes, whose lengths are 1.06 cm, 2.12 cm, and 4.24 cm, respectively, as seen in figure below. Determine the resistance for current that flows through the solid in the x direction. Assume the resistivity is p= 3.00E-5 0* m. وا L2 A Tries 0/12 Determine the resistance for current that flows through the solid in the y direction. Evaluate Feedback Print SA Tries 0/12 Determine the resistance for current that flows through the solid in the a direction. Subest Answer Tries 0/12 Post Discussion Send Feedback