Three resistors of resistance 2,4,10 ohm respectively are connected a) in series with a 12V supply b) in parallel across a 12V supply 1) In each case draw a circuit diagram and determine the current through each resistor and the potential drop across each resistor 2) Determine the power dissipated in the 10 ohm resistor ...continues
An X-ray machine operates from a 220V supply. The machine power is 800W and the supply must also supply six 24W, 220V indicator lights. Please answer all questions with full explanations thankyou 1) What is the total power required? 2) What is the current drawn from the 220V supply? 3) A transformer with 250 turns in ...continues
Please answer the following questions (attached) with full explanations thankyou.
Electric Potential and Electric Potential Energy
A typical 12 V car battery can deliver 9.0 x 10^5 C of charge. If the energy supplied by the battery could be converted entirely to kinetic energy, what speed would it give to a 1200 kg car in m/s?
The specification for a Powerlab indicates that for a particular setting of the device, the inputs have a range of +/- 10 volts and a resolution of 312.5uV. Given this info, how many bits is the A/D in the Powerlab?
In the circuit below how long does it take for the current to drop to 1 uA when the switch is moved from position A to B. (Assume that it has been at A for a long time)
I am confused on specific calculations only. the derivations. scan003.jpg part 1 a). the derivation scan003.jpg part 1 c). the derivation scan0004.jpg a). the derivation I have an limited understanding of how to derive current, but with being weak in math, these derivations do not seem obvious to me. Please include as man ...continues
Part e... if my measurement for part b is1.03 s , 12.02v and my measurement for part d is1.72 s, 3.78 v...I'm so lost at combining these calculations. and scan4.jpg, part b. is this similar to part a? i think i'm missing some math here.
Four resistors are connected to a battery with a terminal voltage of 15 V, as shown in attached figure. Determine the power delivered to R2. (R1 = 20 ohm;, R2 = 45 ohm)
Assume that the length of an axon membrane of about 10 cm is excited by an action potential (length excited = nerve speed x pulse duration = 50 m/s x 2.0 ms = 10 cm). In the resting state, the outer surface of the axon wall is charged positively with K+ ions and the inner wall has an equal and opposite charge of negative org ...continues
