Please answer all the questions or explain each what is the resistance (in ) of
ID: 1399780 • Letter: P
Question
Please answer all the questions or explain each
what is the resistance (in ) of a spool of copper wire ( = 1.69·x10-8 · m)? It has a length L = 16 m and a diameter of d = 1.2 mm.
In the simple circuit below the current I = 564 mA, and the battery has V = 6.4 volts. What must be the resistance (in ) of the resistor R?
A 500.0 Ohm resistor is connected to a 3.0 V battery. Calculate the current through this resistor.
Calculate the power dissipated in the resistor.
In a classic model, the electron of a hydrogen atom circles the proton at a radius of 1.9044·109m when it is in the n=6 state. What is its electric potential energy?
An electric heater is really just a resistor with a voltage across it. If you want to have 780 W of heat with a voltage V = 156 volts, what resistance () should the heater coil have?
In the simple circuit below the current I = 564 mA, and the battery has V = 6.4 volts. What must be the resistance (in ) of the resistor R?
A 500.0 Ohm resistor is connected to a 3.0 V battery. Calculate the current through this resistor.
Calculate the power dissipated in the resistor.
In a classic model, the electron of a hydrogen atom circles the proton at a radius of 1.9044·109m when it is in the n=6 state. What is its electric potential energy?
An electric heater is really just a resistor with a voltage across it. If you want to have 780 W of heat with a voltage V = 156 volts, what resistance () should the heater coil have?
Explanation / Answer
As per guidelines i can answer 3 for you.All based on ohm's law
a)ohm's law
V=IR
6.4=0.564*R
R=6.4/0.564
R=11.3 ohm--answer
2)p=v^2/r
P=3^2/500
P=0.018watt
4)P=V^2/R
780=156^/2/R
R=156^/2/780
R=31.2 ohm---answer