When a 100-Ω Resistor Is Connected to a Battery of Emf

question 63

Multiple Choice

When a 100-Ω resistor is connected to a battery of emf E and internal resistance r, the battery delivers a power P = 0.794 W. When a 200 Ω resistance is connected to same battery it delivers a power P = 0.401 W. What are the emf and internal resistance of the battery?

• A)E = 10 V, r = 5 Ω
• B)E = 4.5 V, r = 4 Ω
• C)E = 18 V, r = 4 Ω
• D)E = 9 V, r = 2 Ω
• E)E = 12 V, r = 6 Ω

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Definitions:

Backward Conditioning

A conditioning process where the unconditioned stimulus is presented before the conditioned stimulus, often resulting in weaker associations.

CS

An abbreviation for Conditioned Stimulus, which is a previously neutral stimulus that, after being associated with an unconditioned stimulus, elicits a conditioned response.

UCR

An unconditioned response, which is an automatic or natural reaction to an unconditioned stimulus without prior conditioning.

Delayed Conditioning

A conditioning process where there is a time gap between the presentation of the conditioned stimulus (CS) and the unconditioned stimulus (US) that leads to learning.