Consider two very long wires, one with a radius of 1mm, and one with a radius of 5mm. Both wires carry the same total amount of current (which is uniformly distributed over the cross-sectional area of each wire). If we measure the magnetic field at a distance of 2cm from each wire separately, which magnetic field will be significantly larger

Awave travels at a speed of 5.2 m/s. if the distance between crests is 0.40 m, what is the frequency of the wave? use f=v/wavelength a. 13 hz b. 2.1 hz c. 0.077 hz d. 5.6 hz

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

8.29 two streams containing pyridine and acetic acid at 25°c are mixed and fed into a heat exchanger. due to the heat-of-mixing effect, it is desired to reduce the temperature after mixing to 25°c using a stream of chilled ethylene glycol as indicated in the diagram. calculate the mass flow rate of ethylene glycol needed. the heat capacity of ethylene glycol at these conditions is approximately 2.8 kj/(kg k), and the enthalpy change of mixing (δmixh) is given below.