Kumar - C1 - Current Electricity at University Of Batangas | Flashcards & Summaries

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# Lernmaterialien für Kumar - C1 - Current Electricity an der University of Batangas

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26) The resistance R1 and R2 are connected in parallel. The ratio of values of resistance R1 : R2 is 4 : 1. The currents in R1 : R2 will be equal to

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1 : 4

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19) The presence of an electric is made to known by

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Flashing

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35) Four resistances R1, R2, Rare connected in series against 220 V supply. The resistance are such that R1 > R2 > R> R4. The least power consumption will be in

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resistor R1

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7) The resistance of a conductor, when its temperature is increased

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Remains constant

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3) Which of the following statement is correct?

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The resistance does not play an important role in the electrical engineering

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20) An electric current can neither be _ nor _.

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felt, seen

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6) The specific resistance ρ is defined as

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Resistance of a conductor which has a length of 1 m and cross-section of 1 m2 at 25°C

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13) The resistance of carbon (filament in carbon filament lamps) when its temperature is decreased

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Decreases

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11) When current flows in a conductor, heat is produced because

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Heat ∝ I2

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2) Out of the following, select the best conductor of electricity.

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Graphite

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14) The curve representing the Ohm's law is

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Parabola

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4) Resistance of conductor increases when

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Its length increases

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Q:

26) The resistance R1 and R2 are connected in parallel. The ratio of values of resistance R1 : R2 is 4 : 1. The currents in R1 : R2 will be equal to

A:

1 : 4

Q:

19) The presence of an electric is made to known by

A:

Flashing

Q:

35) Four resistances R1, R2, Rare connected in series against 220 V supply. The resistance are such that R1 > R2 > R> R4. The least power consumption will be in

A:

resistor R1

Q:

7) The resistance of a conductor, when its temperature is increased

A:

Remains constant

Q:

3) Which of the following statement is correct?

A:

The resistance does not play an important role in the electrical engineering

Q:

20) An electric current can neither be _ nor _.

A:

felt, seen

Q:

6) The specific resistance ρ is defined as

A:

Resistance of a conductor which has a length of 1 m and cross-section of 1 m2 at 25°C

Q:

13) The resistance of carbon (filament in carbon filament lamps) when its temperature is decreased

A:

Decreases

Q:

11) When current flows in a conductor, heat is produced because

A:

Heat ∝ I2

Q:

2) Out of the following, select the best conductor of electricity.

A:

Graphite

Q:

14) The curve representing the Ohm's law is

A:

Parabola

Q:

4) Resistance of conductor increases when

A:

Its length increases

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