Deck 8: Ohms Law

Question 1

Current goes down when resistance goes down with a constant E.

Answer 1

False

Question 2

German scientist Georg S.Ohm stated that the current (I) is inversely proportional to the voltage (E).

Answer 2

False

Question 3

Current ____ when resistance goes up with constant E.

A)goes down
B)goes up
C)gradually increases
D)remains the same

Answer 3

A

Question 4

German scientist Georg S.Ohm stated that the current (I) is directly proportional to the resistance (R).

Question 5

Ohm's law is designed for use with metric prefixes only.

Question 6

With Ohm's law, current must be expressed in ____.

A)watts
B)volts
C)amperes
D)kilohms

Question 7

In the language of mathematics, the relationship between E, I, and R is simply stated as ____.

A)E = R/I
B)I = E + R
C)R = I/E
D)I = E/R

Question 8

Ohm's law is one of the most important formulas in electrical theory.

Question 9

If a current (I) of 6 amperes is flowing through a 4-ohm resistance (R), the voltage (E) needed to force the current through the resistance is ____.

A)0.33 V
B)1.5 V
C)10 V
D)24 V

Question 10

When given values are stated with metric prefixes instead of basic units, it is recommended to convert the metric prefixes to ____.

A)basic units
B)complex units
C)the power of 1
D)powers of 10

Question 11

Ohm's law can be algebraically transposed and rewritten into other forms, such as E = I X R.

Question 12

Current goes down when voltage goes down with constant ____.

A)I
B)E
C)R
D)R and E

Question 13

R = I/E is known as Ohm's Law.

Question 14

Ohm's law enables us to compute ____.

A)chemical or electrical properties
B)unknown circuit quantities
C)mechanical or electrical properties
D)unknown quantum properties

Question 15

With Ohm's law, ____ must be expressed in ohms.

A)resistance
B)conductivity
C)voltage
D)current

Question 16

The three quantities E, I, and R are not related to one another in a significant way.

Question 17

Current goes up when voltage goes up with a constant R.

Question 18

When using Ohm's law, special precaution must be observed when given values are stated with basic units.

Question 19

Ohm's law helps us to predict or confirm proper ____ operation.

A)circuit
B)electronic
C)mechanical
D)current

Question 20

If a resistance (R) of 4 ohms is connected to a 12-volt battery (E), the current (I) is ____.

A)0.25 A
B)0.33 A
C)3 A
D)48 A