Resistance _ GCSE Physics

Resistance _ GCSE Physics

Assessment

Interactive Video

Engineering, Physics, Science

11th Grade - University

Hard

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The video tutorial explains how electrons moving through a conductor, like a metal wire, encounter resistance due to collisions with ions. It discusses how the length and thickness of a wire affect resistance, with longer and thinner wires having greater resistance. The resistance formula R = V/I is introduced, and the relationship between voltage and current is explored through graph plotting. The tutorial also covers how resistance in filament bulbs increases with temperature, resulting in an S-shaped graph due to increased ion vibration and electron collisions.

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5 questions

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1.

OPEN ENDED QUESTION

3 mins • 1 pt

What factors affect the resistance in a circuit?

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2.

OPEN ENDED QUESTION

3 mins • 1 pt

Explain why the resistance of a thin wire is greater than that of a thick wire.

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3.

OPEN ENDED QUESTION

3 mins • 1 pt

Describe the relationship between voltage and current in a fixed resistor.

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4.

OPEN ENDED QUESTION

3 mins • 1 pt

How does the temperature of a filament bulb affect its resistance?

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5.

OPEN ENDED QUESTION

3 mins • 1 pt

What does the graph of resistance in a filament bulb look like, and why?

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