Chapter 4: Q58P (page 845)
A resistor with resistance is connected to a battery that has emf 12.0 V and internal resistance . For what two values of will the power dissipated in the resistor be 80.0 W ?
Short Answer
The two values of are and .
Chapter 4: Q58P (page 845)
A resistor with resistance is connected to a battery that has emf 12.0 V and internal resistance . For what two values of will the power dissipated in the resistor be 80.0 W ?
The two values of are and .
All the tools & learning materials you need for study success - in one app.
Get started for freeWhen a resistor with resistance Ris connected to a 1.50-V flashlight battery, the resistor consumes 0.0625 W of electrical power. (Throughout, assume that each battery has negligible internal resistance.) (a) What power does the resistor consume if it is connected to a 12.6-V car battery? Assume that Rremains constant when the power consumption changes. (b) The resistor is connected to a battery and consumes 5.00 W. What is the voltage of this battery?
Question: A positive point charge is placed near a very large conducting plane. A professor of physics asserted that the field caused by this configuration is the same as would be obtained by removing the plane and placing a negative point charge of equal magnitude in the mirror image position behind the initial position of the plane. Is this correct? Why or why not?
You want to produce three 1.00-mm-diameter cylindrical wires,
each with a resistance of 1.00 Ω at room temperature. One wire is gold, one
is copper, and one is aluminum. Refer to Table 25.1 for the resistivity
values. (a) What will be the length of each wire? (b) Gold has a density of.
What will be the mass of the gold wire? If you consider the current price of gold, is
this wire very expensive?
In the circuit, in Fig. E26.47 the capacitors are initially uncharged, the battery has no internal resistance, and the ammeter is idealized. Find the ammeter reading (a) just after the switch S is closed and (b) after S has been closed for a very long time.
A circular area with a radius oflies in the xy-plane. What is the magnitude of the magnetic flux through this circle due to a uniform magnetic fieldlocalid="1655727900569" (a) in the direction of +z direction; (b) at an angle offrom the direction; (c) in the direction?
What do you think about this solution?
We value your feedback to improve our textbook solutions.