A strain guage consists of a wire of total length 3metre and resistance 750 Ohm. A force

causes the length of the wire to increase to 3.005 metre. Calculate the change in resitance

of the guage.

i wanna say it’s between b and d, leaning more towards b.

i think the answer is a, hope this : )

pythagoras' theorem

square root (-5^2+9^2)

square root (25+81)

square root (106)

angle is tan^-1(9/5)

neg x, pos y