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Vs =0.7 V, R2 =119 Ω, R3 =122 Ω and R4 =122 Ω.
(iii) When the bar is struck it oscillates with a maximum strain of 5 x 10−6 . Given that this varies the value of R1 by 1 Ω, complete these calculations for the minimum and maximum output voltage. Please give your answer to four decimal places.
(min) = ?V
(max) = ?V
Does the floor vibrate which cannot be seen
a) Calculate the current that will flow when the kettle is turned on.
b) What fuse should be included in the circuit of the kettle? Assume that the fuses available are 3A, 5A,
c) Calculate the resistance of the heating element of the kettle.
d) If 420kJ of energy are required to boil some amount of water, how much time would the kettle need
to boil this amount of water?
Do they move through wire or directly through electrolyte to cathode