A transformer has input of 6V and output of 36V , if the input is changed to 12V ,show that the output would be 72V?

Q: Give some applications of Electromagnetic Induction?

A: When the magnetic flux linked with the coil changes, an induced emf is developed in the coil. This…

Q: If you are planning to make an idea charger (step down transformer) with an  output of 5.0V when it…

A: The required expression for the required ratio of output to input turns of coils is,

Q: How does the frequency of induced voltage relate to how frequently a magnet is plunged in and out of…

A: The frequency of the induced voltage is the same as the frequency of the varying magnetic field…

Q: A transformer works on the principle of

A:

Q: How a step up transformer works?

A: The transformer is a static electrical device that is used in many electronic devices like inverters…

Q: Under what conditions might wires in a DC circuit emit electromagnetic waves?

A: The frequency of DC current is zero. Its value does not change with time. Therefore, it cannot…

Q: A transformer has an input of 6 VV and an output of 72 VV . If the input is changed to 12 VV , find…

A: solution:

Q: A transformer has a voltage input of 120 V and an output of 1500 V. If the primary coll has 200…

A: Input voltage (V) = 120 volts Output voltage (V') = 1500 volts Number of loops in primary coil (N) =…

Q: If there are 7 times as many turns in the secondary coil of a transformer than in the primary coil,…

A: Write the given values with the suitable variables. Ns=7NpIp=4.7 A Here, Ns, Np, and Ip are the…

Q: What does changing magnetic field induce?

A: A change in magnetic field induces a current in a conductor.

Q: Does the generator at power station produce dc or ac?

A:

Q: What is the conditions necessary for Electromagnetic Induction?

A: Electromagnetic Induction is a current generated due to a changing magnetic field due to the…

Q: An alternating rectangular wave has a maximum value of 10 V and a frequency of 1 cycle per second.…

A: Here you only need to consider one cycle of the voltage to calculate the average value.

Q: Discuss the statement " In case of a transformer whatever is gained is voltage is lost in current".

A: Transformer is a device which works on the principle of electromagnetic induction. As we apply…

Q: In a step down transformer, how does the input current compare with the output current?

A: In a step down transformer, the output current is higher than the input current. Because the number…

Q: A transformer has an input of 6 V and an output of 36 V. If the input is changed to 12 V, show that…

A:

Q: Why does the cord of an electric heater not glow while the heating element does?

A: The heating element of the heater will be made up of an alloy having high resistance (resistivity).…

Q: If the Sun were to disappear or radically change its output,how long would it take for us on Earth…

A: The formula for velocity is c=dt Here, d is the distance, t is the time.

Q: What exactly does a step down transformer step down?

A: Step down transformer is used to drop the voltage from higher voltage to low voltage.

Q: The secondary coil of an ideal transformer has 600 turns and the primary has 30 turns. Show that…

A:

Q: transformer has an input

A:

Q: How are the emf in the primary and secondary coils of a transformer related with the number of turn…

A: Emf in the coil is directly proportional to the number of turns.

Q: The direction of the induced emf in the coil as current increases from 0 up to 10A over 0.1 seconds…

A: The direction of induced emf is  perpendicular to the direction of magnetic field as well as the…

Q: Why will a transformer not work if you are using dc?

A:

Q: What is cenre-tap transformer?

A: The centre-tap transformer is having a small different from the usual transformer in which the…

Q: Is it correct to say that a transformer boosts electric energy? Defend your answer.

A: Transformer boost energy

Q: Does the length of a magnet affect the galvanometer's deflection?

A: No,

Q: The primary coil of a step-up transformer draws 40 W. Find the power provided by the secondary coil.…

A: The power in secondary We know that,For ideal transformer Power in secondary = power in primary…

Q: What are the functions of a Transformer?

A: The function of the transformer, as the name implies, is to transform alternating current energy…

Q: An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12-V ac is…

A:

Q: When 7 A of AC current at 124 V flows in the primary coil of an ideal transformer, how many amps at…

A: For the transformer, the relation between the current and voltage in primary and secondary coil is…

Q: Your friend says that if you crank the shaft of a dc motor manually, the motor becomes a dc…

A: Any coil of wire spinning in a magnetic field which cuts through the magnetic field is called a…

Q: Suppose that there was a situation where a transformer contains 150 turns on the first coil and 800…

A:

Q: The ratio of number of windings on the primary side to the number of windings on the secondary side…

A:

Q: Will a transformer work if the input is a dc voltage?

A: Transformer is an electrical device design to works on alternating current and voltage. If we apply…

Magnetic Field Of Coaxial Cable

The word coaxial means same axis. So for a long straight cable to be coaxial, it must have concentric cylindrical shaped conductor around it. Coaxial cable (popularly called ‘coax’) has various applications ranging from current conductors to radiofrequency signal transmitters. This cable has lower emission losses and provides protection from electromagnetic interference which allows signals with less power to transmit over longer distances.For example, currents produced in the pickup of a stereo turntable generally travel to the amplifier through a coaxial cable.The self-inductance of a coaxial cable is another important characteristic, because it influences the propagation of electrical signals in the cable.