When one end of iron poker is put into the edge of a fire the other end of the poker gets hot due to what the heat transfers?
2 answers:
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For item#1 , see attached picture, there is a voltage source, a resistor and wire (where current flow).
For item#2, we use the formula V=IR where "V" is for the voltage, "I" is for the current and "R" for the resistance
Solving for I:
I = v/r
I = 45volts/15k ohms
I=3 mA
For item#3, power is P=VI
p = 45volts * 3ma
P = 0.135 Watts
For item#2, we use the formula V=IR where "V" is for the voltage, "I" is for the current and "R" for the resistance
Solving for I:
I = v/r
I = 45volts/15k ohms
I=3 mA
For item#3, power is P=VI
p = 45volts * 3ma
P = 0.135 Watts