Physics of Everyday Phenomena
9th Edition
ISBN: 9781259894008
Author: W. Thomas Griffith, Juliet Brosing Professor
Publisher: McGraw-Hill Education
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Chapter 14, Problem 15E
To determine
The number of turns in secondary coil.
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Chapter 14 Solutions
Physics of Everyday Phenomena
Ch. 14 - The north pole of a handheld bar magnet is brought...Ch. 14 - If the distance between the south poles of two...Ch. 14 - In what respects is the force between two magnetic...Ch. 14 - Is it possible for a bar magnet to have just one...Ch. 14 - Does a compass needle always point directly...Ch. 14 - If we regard the Earth as a magnet, does its...Ch. 14 - We visualized the magnetic field of the Earth by...Ch. 14 - A horizontal wire is oriented along a north-south...Ch. 14 - A horizontal wire is oriented along an east-west...Ch. 14 - Is the force exerted by one current-carrying wire...
Ch. 14 - A uniform magnetic field is directed horizontally...Ch. 14 - A positively charged particle is momentarily at...Ch. 14 - If a uniform magnetic field is directed...Ch. 14 - Why does the magnetic force on a current-carrying...Ch. 14 - If we look down at the top of a circular loop of...Ch. 14 - If we were to represent the current loop of...Ch. 14 - A current-carrying rectangular loop of wire is...Ch. 14 - If the rectangular loop of wire shown in question...Ch. 14 - Because the magnetic fields of a coil of wire and...Ch. 14 - In what respect is a simple ammeter designed to...Ch. 14 - Does an ac motor require a split-ring commutator...Ch. 14 - Which type of motor typically runs at a fixed...Ch. 14 - If Faraday wound enough turns of wire on the...Ch. 14 - Is a magnetic flux the same as a magnetic field?...Ch. 14 - A horizontal loop of wire has a magnetic field...Ch. 14 - Suppose the magnetic flux through a coil of wire...Ch. 14 - Two coils of wire are identical except that coil....Ch. 14 - Do the sensors that detect vehicles at stoplights...Ch. 14 - Under which conditions are inductive detectors...Ch. 14 - If the magnetic field produced by the magnets in a...Ch. 14 - Does a simple generator produce a steady direct...Ch. 14 - A simple generator and a simple electric motor...Ch. 14 - Can a transformer be used, as shown in the...Ch. 14 - By stepping up the voltage of an...Ch. 14 - Prob. 1ECh. 14 - Two long parallel wires, each carrying a current...Ch. 14 - Prob. 3ECh. 14 - Prob. 4ECh. 14 - A wire carries a current of 12 A. How much charge...Ch. 14 - A particle with a charge of 0.6 C is moving at...Ch. 14 - A straight segment of wire has a length of 12 cm...Ch. 14 - The magnetic force on a 60-cm straight segment of...Ch. 14 - A coil of wire with 150 turns has a...Ch. 14 - A loop of wire enclosing an area of 0.04 m2 has a...Ch. 14 - The magnetic flux through a coil of wire changes...Ch. 14 - A coil of wire with 120 turns and a...Ch. 14 - Prob. 13ECh. 14 - If 15 A of current are supplied to the primary...Ch. 14 - Prob. 15ECh. 14 - Prob. 16ECh. 14 - Two long parallel wires carry currents of 8 A and...Ch. 14 - A small metal ball with a charge of +0.08 C and a...Ch. 14 - A rectangular coil of wire has dimensions of 4 cm...Ch. 14 - Prob. 4SP
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- A transformer consists of a 500-turn primary coil and a 2000-turn secondary coil. If the current in the secondary is 3.0 A, what is the current in the primary?arrow_forwardA step-down transformer has 600 V across the primary coil and 120 V across the secondary. The secondary has 80 turns. If a load resistance 7.82 Ω is in the secondary, what is the primary current?arrow_forwardA power transmission line feeds input power at 2300 V to a stepdown transformer with its primary windings having 4000 turns. What should be the number of turns in the secondary in order to get output power at 230 V?arrow_forward
- The charger for a cell phone contains a transformer that reduce 120 V ac to 5.0 V ac to charge the 3.7 V battery. Suppose the secondary coil contains 30 turns and the charger supplies 700mA. Calculate the current in the primary coil.arrow_forwardA transformer has 500 turns in its primary and 300 turns in its secondary. 1200 V ac is connected to the primary. What is the output voltage?arrow_forwardA transformer is used to provide voltage to a neon sign. The input voltage is 120 V and the output voltage is 600 V. The number of turns on the primary coil of the transformer is 300. The current supplied to the transformer is 2.5 A. What is the number of turns on the secondary coil and the current used in the neon sign? The number of turns in the secondary coil is 60 and the current in the sign is 2.5 A The number of turns in the secondary coil is 240 and the current in the sign is 0.5 A The number of turns in the secondary coil is 60 and the current in the sign is 0.5 A The number of turns in the secondary coil is 1500 and the current in the sign is 0.5 A The number of turns in the secondary coil is 240 and the current in the sign is 2.5 Aarrow_forward
- Question 1: A step-up transformer has 2 turns in primary coil and 10 turns in the secondary coil. A student applies 5 Volts and 1 Ampere DC in the primary coil. What is the output in the secondary coil? Question 2: A cell phone charger has a transformer that decreases 220 Volts AC to 5 Volts AC. If the secondary coil has 10 turns, calculate the number of turns in the primary coil. Question 3: A step-down transformer has 15 turns in its primary coil and 10 turns in its secondary coil. A student applies 5 Volts sinusoidal signal with a frequency of 50H2 in the primary coil. What is the output voltage and frequency in the secondary coil?arrow_forwardA primary coil of a transformer is connected to a 120V source and draws a 12 A. The secondary coil has 800 turns and a current of 4.0 A. What is the voltage in the secondary coil?arrow_forwardA multipurpose transformer has a secondary coil with several points at which a voltage can be extracted, giving outputs of 5.60, 12.0, and 480 V. The input voltage is 240 V to a primary coil of 280 turns. What are the numbers of turns in the parts of the secondary used to produce the output voltages?arrow_forward
- How many turns of the coil are required in order to produce 2 V of induced voltage at the rate of 5 wb/sarrow_forwardA transformer consists of 275 primary windings and 834 secondary windings. If the potential difference across the primary coil is 25.0 V. what is the voltage across the secondary coil? Is this a step up or step down transformer? Explain. What is the effective load resistance of the secondary coil if it is connected across a 125 Ω resistor ?arrow_forwardA step-up transformer is designed to produce 1610 V from a 115-V ac source. If there are 392 turns on the secondary coil, how many turns should be wound on the primary coil?arrow_forward
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