Determine the induced emf if a short in the rheostate

Assignment Help Electrical Engineering

Reference no: EM13228733

The resistance of the shunt field winding and the resistance setting of the shunt field rheostat of a separately excited generator are 10.26 ohm and 14.23 ohm respectively. The field circuit is connected to a 120-V DC source. Sketch the equivalent circuit and determine (a) the induced emf (b) the induced emf if a short in the rheostat caused the rheostat resistance to drop to 4.2 ohm

Reference no: EM13228733

Questions Cloud

Define how magnesium can exhibit metallic behavior : Using a band diagram, explain how magnesium can exhibit metallic behavior when its 3s band is completely full.

Find the frequency components at the output of the circuit : In a certain communications system a resonant-tuned circuit (tuned at 1200 kHz with Bandwidth = 15 kHz) is connected to the output of a non-linear amplifier (mixer). Find the frequency components at the output of the resonant-tuned circuit

Explain the collision cross-section for the reaction : Use the collision theory to calculate the theoretical value of the second-order rate constant (in m3 mol-1 s-1) for the gas-phase reaction D2 + Br2 = 2 DBr at 450 K assuming that it is elementary bimolecular. The collision cross-section for this r..

What is the upper control limit for the r chart : What is the upper control limit, what is the upper control limit for the x-bar chart and what is the upper control limit for the R chart?

Determine the induced emf if a short in the rheostate : The resistance of the shunt field winding and the resistance setting of the shunt field rheostat of a separately excited generator are 10.26 ohm and 14.23 ohm respectively. The field circuit is connected to a 120-V DC source.

Evaluate the electric field at each of the two points : The electric field in a certain region of space is given by the vector field E(r ) = E(x, y, z) = (x ? z)xˆ + (z ? y) yˆ V/m Find any two points P( x1 , y 1, z 1) and Q( x2 , y2 , z2 ) such that the electric field at P is perpendicular to the elec..

Explain the secondary structure of a polypeptide : Explain why rotation about N-Ca and Ca-C bonds is solely responsible for the secondary structure of a polypeptide

What are the risks associated with backdoor : What are the risks associated with backdoor (maverick) buying and selling? Why is purchasing interested in controlling this business practice?

What is the minimum number of workstations : What is the minimum number of workstations that will ensure an output rate of 43 units per day? (Assume that all of the individual task times are smaller than the obtained cycle time.)

User Account

All Pages