7. Select the always true statements from the following list a. Ampere: R/V b. R

Question

7. Select the always true statements from the following list

a. Ampere: R/V

b. Resistivity: temperature dependent.

c. Battery: produces electricity by transforming chemical energy into electrical energy.

d. Car batteries: rated in "ohm-cm."  

e. Electric Current: direction that electrons move in a conductor.

f. Ohms: V/I

a. Ampere: R/V

b. Resistivity: temperature dependent.

c. Battery: produces electricity by transforming chemical energy into electrical energy.

d. Car batteries: rated in "ohm-cm."  

e. Electric Current: direction that electrons move in a conductor.

f. Ohms: V/I

Explanation / Answer

a) False ( Ampere = Ohms/volt)

b) True

c) True

d) False (Car batteries are rated in Amper hour)

e) True ( Conventionaly the current direction is taken opposite to the direction of flow of electron but) here in this case the statement is supporting the idea of electronic or actual current.

f) False (Ohms = Volt / Ampere)

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