Question

In: Physics

An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12...

An ideal transformer has 50 turns in its primary and 250 turns in its secondary. 12 V ac is connected to the primary. Find:

a. The voltage ac available at the secondary.

b. Current in the 10 ohms device connected to the secondary.

c. Power supplied to the primary.

d. Power supplied to the secondary.

Expert Solution

a) Let the voltage ac available at the secondary is V_s.

Given that the primary ac voltage V_p=12 V.

The primary turns N_p=50 Turns.

The secondary turns N_s=250 Turns.

We know from the transformer principles

The voltage ac available at the secondary is 60 V.

b) Let the current in the device connected to the secondary is I_s.

Given that the resistance of the device R_s=10 Ohms.

The secondary ac voltage V_s=60 V.

The current in the device is

The current in the device connected to the secondary is 6 A.

c) Let the power supplied to the primary is P_p.

The ac voltage connected to the primary is V_p=12 V.

Let the current in the primary is I_p.

The current to the primary is

The power supplied to the primary is

The power supplied to the primary is 360 Watts.

d) Let the power supplied to the secondary is P_s.

The current in secondary is I_s=6 A.

The voltage in secondary is V_s=60 V.

The power supplied to secondary is

The power supplied to secondary is 360 Watts.

genius_generous answered 2 years ago

An ideal transformer has 50 turns in its primary (input) and 450 turns in its secondary...

An ideal transformer has 50 turns in its primary (input) and 450 turns in its secondary (output). 10.0-V ac is connected to the primary (input). a) What is the voltage on the secondary (output)? b) What is the secondary (output) current if a 10.0- resistor is connected to the secondary (output)? c) What is the power supplied to the primary (input)?

1. An ideal transformer has a primary with 25 turns and secondary with 15 turns. The...

1. An ideal transformer has a primary with 25 turns and secondary with 15 turns. The load resistor is 24 ? and the source voltage is 85 Vrms.What is the rms electric potential across the 24 ? load resistor? Answer in units of Vrms 2. A transformer consists of two coils of wire wound on a common toroidal iron core. The mutual inductance of the pair is 483 mH and the current in the first coil decreases from 29 A...

current transformer with a bar primary has 250 turns in it secondary winding. the resistance and...

current transformer with a bar primary has 250 turns in it secondary winding. the resistance and reactance of the secondary circuit are 1.4 ohms and 1.1 ohms respectively including the transformer winding. when 5A current flows in the secondary winding, the magnetism mmf is 80 AT and iron lost is 1.1w. determine the following (i) ratio error (ii) phase angle error

Exercises 1. A 25 kVA single-phase transformer has the primary and secondary number of turns of...

Exercises 1. A 25 kVA single-phase transformer has the primary and secondary number of turns of 200 and 400, respectively. The transformer is connected to a 220 V, 50 Hz source. Calculate the (i) turns ratio, and (ii) mutual flux in the core. 2. A 25 kVA, 2200/220 V, 50 Hz single-phase transformer’s low voltage side is short-circuited and the test data recorded from the high voltage side are P=150 W, I1 = 5A and V1 = 40 V. Determine...

A plug-in transformer supplies 9.00 V to a video game system. How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 381 turns?

(A) A plug-in transformer supplies 9.00 V to a video game system. How many turns are in its secondary coil if its input voltage is 120 V and the primary coil has 381 turns? What is its input current when its output is 1.33 A? (B)What is the characteristic time constant of a 24.2 mH inductor that has a resistance of 4.08 Ω? If it is connected to a 12.0 V battery, what is the current after 12.5 ms? (C)Two...

The secondary of a 500kVA, 4400/500 V, 50Hz, single-phase transformer has 500 turns. A) determine emf...

The secondary of a 500kVA, 4400/500 V, 50Hz, single-phase transformer has 500 turns. A) determine emf per unit. B) primary turns. C) secondary full load current D) maximum flux E) gross cross-sectional area of the core for flux density of 1.2 tesla F) if the core is square cross-section find the width of the limb

A current transformer rated 500/5 A, 20 VA, 50 Hz has a turns ratio of 1:99....

A current transformer rated 500/5 A, 20 VA, 50 Hz has a turns ratio of 1:99. Its resistance aand leakage reluctance of the secondary winding are 0.4 Ω and 0.35 Ω respectively. At rated non-inductive burden, the inphase and quadrature components of the exciting mmf are 6 AT and 8 AT respectively. Determine the current and phase angle error.

A 29-L sample of an ideal gas with γ=1.67 is at 250 K and 50 kPa...

A 29-L sample of an ideal gas with γ=1.67 is at 250 K and 50 kPa . The gas is compressed adiabatically until its pressure triples, then cooled at constant volume back to 250 K, and finally allowed to expand isothermally to its original state. How much work is done on the gas? What is the minimum volume reached?

An ideal solenoid, of radius R and n turns per unit length, has a current flowing...

An ideal solenoid, of radius R and n turns per unit length, has a current flowing through it. The current, I, varies with time, t, according to I = I0 + at where I0 and a are constants. A conducting ring of radius, r, is placed inside the solenoid with its axis coinciding with the axis of the solenoid. The ring has a resistance per unit length of H (in units of Ω/m). (a) Use Lenz’s law to determine the...

1) The three-dimensional structure of a protein is determined by its primary, secondary, or tertiarty structures....

1) The three-dimensional structure of a protein is determined by its primary, secondary, or tertiarty structures. What are some of the common secondary structures? What are the foreces that hold together the secondary and tertiary structures? 2) The function of proteins can be regulated in a number of ways. Describe how protein phosphorylation and GTP binding proteins can modulate protein function.