0
Add your answer:
Earn +20 pts
What is the factors determining induced emf in dc machine?
In simple, number of turns of armature, intensity of magnet and speed of machine are major factor affecting induced emf in dc generator. If speed is increased, voltage will be increased simultaneously. Also Voltage is greater if number of turns are increased. Electro-magnet in the poles of a DC Generator also play an important role in the induced EMF. If intensity of magnet is exceeds, voltage also increased as well.
If a transformer has 1000 turns of wire in the primary coil and 50 turns in the secondary coil if the input voltage is 2400 V what is the output voltage?
120 v
A step-up transformer has 300 turns on the primary coil and 90000 turns on the secondary coil if the current flowing through the secondary is 5 amps what is the current flowing in the primary?
If a step-up transformer has 200 turns on the primary coil and 3000 turns on the secondary coil, with a primary coil voltage of 90 volts and current of 30 amps, then the turns ratio is 200:3000, so the secondary voltage is 1350 voltage and the available current is 2 amps. (This ignores losses through the transformer.)
Working principle of ammeter?
An ammeter consists of a coil with very low resistance. when electric current flows through the coil, the coil induces a magnetic field which turns the needle.
A stepup transformer has 100 turns on the primary coil and 500 turns on the secondary coil If the primary voltage is 120 volts what will be the secondary voltage?
A step-up transformer has 100 turns on the primary coil and 500 turns on the secondary coil. If there is 120 volts and 10 amps on the primary, what will be the current in the secondary? 2 amps.600v 2A
Why deflection of the magnetic needle placed in a coil carrying current increases as the number of turns in the coil increases?
Increasing the number of turns in the coil results in a stronger magnetic field around the coil. This increased magnetic field exerts a greater force on the magnetic needle, causing it to deflect more. The deflection of the needle is directly proportional to the strength of the magnetic field, which is why increasing the number of turns in the coil results in increased deflection of the needle.
What causes inductance in a circuit?
Transformers........ you can make coil with few turns to produce required inductance.Another AnswerInductance occurs in ALL circuits. But it can be increased by winding a conductor to form a coil. It can be increased even further by using a ferromagnetic core within the coil.
. A step-up transformer has a primary coil with 100 turns and a secondary coil with 25 turns. If the input voltage in the primary coil is 40 volts what is the output voltage reduced to in the secondar?
The output voltage in the secondary coil would be increased. Using the transformer formula Vp/Vs = Np/Ns (where Vp = primary voltage, Vs = secondary voltage, Np = number of turns in primary coil, Ns = number of turns in secondary coil), we can calculate the output voltage to be 160 volts (40V * 100/25).
The magnetic field of a solenoid can be increased by?
increasing the number of turns in the coil, increasing the current flowing through the coil, and inserting an iron core into the solenoid to enhance magnetic properties.
How many turns of wire in a coil to produce 240V?
it depends on what is your low volatage. the turns of coil it's according to what is the voltage they are,When the coil / coil is equail voltage/voltage
What is the relationship between the stength of an electromagnet and the number of turns in the coil?
The strength of an electromagnet is directly proportional to the number of turns in the coil. Increasing the number of turns in the coil increases the magnetic field strength produced by the electromagnet.
What coil will be greater if the primary coil of a transformer has 40 turns and the secondary coil has 60 turns?
The secondary coil will have greater inductance compared to the primary coil because it has more turns. The inductance of a coil is directly proportional to the square of the number of turns, so increasing the number of turns increases the inductance.
What is the definition of turns in a wire coil?
Turns in a wire coil refer to the number of times the wire loops around the core of the coil. It is a measure of how tightly wound the wire is within the coil and affects the strength of the magnetic field produced by the coil. More turns generally result in a stronger magnetic field.
Which change will most likely increase the strength of a mechanic field produced by an electromagnetic?
Increasing the number of turns in the coil of wire will most likely increase the strength of the magnetic field produced by an electromagnet. More turns of wire will result in a stronger magnetic field due to the increased current flowing through the coil.
How does the no of turns in a coil affect the production of electrical energy?
A coil doesn't produce electrical energy, but it can store it. For a given current (amperes), the energy storage in a coil is proportional to the coil's inductance, which in turn depends on the coil's length, diameter, and number of turns. With everything else staying constant, the coil's energy storage capacity increases when the number of turns increases.
What is the factors determining induced emf in dc machine?
In simple, number of turns of armature, intensity of magnet and speed of machine are major factor affecting induced emf in dc generator. If speed is increased, voltage will be increased simultaneously. Also Voltage is greater if number of turns are increased. Electro-magnet in the poles of a DC Generator also play an important role in the induced EMF. If intensity of magnet is exceeds, voltage also increased as well.
How can the magnitude of the magnetic field be increased?
The magnitude of the magnetic field can be increased by increasing the current flowing through a wire or coil, increasing the number of turns in the coil, or using a material with higher magnetic permeability. Additionally, placing the magnetized material within a solenoid or near a strong permanent magnet can also increase the magnetic field strength.
