A student has been asked to investigate the relationship between load and extension on a spring. Describe a practical investigation the student could conduct to find the relationship between load and the extension of the spring. In your answer, include a method, safety precautions and any readings they may need to take to find a conclusion. Thank you in advance ☺️

The answer is b hope this

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The answer is trial 3.

Ohm's law tells you that i = v/r where v is equivalent voltage and r is equivalent resistance of the circuit
since all circuits have the same voltage, your question is really asking which circuit has the lowest total resistance, since the lower the resistance, the higher the current
circuit a has a resistance of 5 ohms; circuit c is in series so has a resistance of 10 ohms; circuit b is in parallel and therefore has a resistance of 2.5 ohms (review your notes on adding resistances in parallel and series); therefore b has the highest current