Answer the following questions concerning the use of a multimeter. What measurab

Question

Answer the following questions concerning the use of a multimeter. What measurable quantity can never be negative? What type quantity (scalar or vector) is a multimeter unable to read directly? What measurable quantity is independent of the circuit being DC or AC? Electricity is made up of _____ Inside a electrochemical cell, the ____ chemically reacts with the _____ Electrical potential provides us with an efficient and indirect way of measuring _______ The electric field provides us with an efficient and indirect way of measuring _____ The electron volt is a unit used to measure _____

Explanation / Answer

A)

The measurable quantity that can never be negative is the electric resistance of the circuit.

B)

A multimeter cannot measure voltage directly. It uses the relationship between current, voltage and resistance. Multimeter consists a fixed resistance and it measures the current directly. Out of three, two quantities are known and hence it measures voltage.

C)

Again resistance is the quantity that is independent of the circuit being DC or AC.

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