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12th Edition

Dale Ewen

Publisher: Cengage Learning

ISBN: 9781337630580

Chapter 7.1, Problem 37E

Textbook Problem

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A transformer has a voltage of 18 V in the primary circuit and 4950 V in the secondary circuit. Find the ratio of the primary voltage to the secondary voltage.

To determine

**To calculate:** The ratio of primary voltage to the secondary voltage if primary voltage of transformer has 18 V and secondary transformer has 4950 V.

**Given Information:**

The primary voltage of transformer has 18 V and secondary transformer has 4950 V.

**Calculation:**

The ratio of primary voltage to the secondary voltage is,

Substitute

Elementary Technical Mathematics

Show all chapter solutions

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The...Ch. 7.2 - A 25-lb bag of fertilizer covers 1200 ft2 of lawn....Ch. 7.2 - A copper wire 750 ft long has a resistance of...Ch. 7.2 - The voltage drop across a 28- resistor is 52 V....Ch. 7.2 - The ratio of secondary turns to primary turns in a...Ch. 7.2 - If welding rods cost $75 per 50 lb, how much would...Ch. 7.2 - An engine with displacement of 2.0 L develops 270...Ch. 7.2 - An 8-V automotive coil has 250 turns of wire in...Ch. 7.2 - An automobile uses 18 gal of fuel to go 560 mi....Ch. 7.2 - A fuel pump delivers 35 mL of fuel in 420 strokes....Ch. 7.2 - A label reads: 2.5 mL of solution for injection...Ch. 7.2 - A multiple-dose vial has been mixed and labeled...Ch. 7.2 - You are to administer 150 mg of aminophylline from...Ch. 7.2 - A label reads: Gantrisin, 1.5 g in 20 mL. How many...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - When finding the percent, round to the nearest...Ch. 7.2 - Find the number of millilitres of pure ingredient...Ch. 7.2 - Find the number of millilitres of pure ingredient...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - Find the number of grams of pure ingredient needed...Ch. 7.2 - The ratio of beef to pork for meat loaf is 5:2....Ch. 7.2 - There are 6 bone-in prime rib cuts in each l09...Ch. 7.2 - The following recipe is for sherry vinegar...Ch. 7.2 - The following recipe is for popover batter: 112 qt...Ch. 7.2 - The following recipe is for 16 crepes: 14 cup...Ch. 7.2 - The following recipe for la creme au chocolat...Ch. 7.2 - The following recipe for cheese souffle serves 4:...Ch. 7.2 - The kitchen ratio of ingredients for cranberry...Ch. 7.2 - The kitchen ratio of ingredients for tenderloin of...Ch. 7.2 - The following recipe for a chicken or turkey...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Figure 7.2 (page 266) to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the map in Illustration 1 to find the...Ch. 7.3 - Use the scale drawing of a metal plate cover in...Ch. 7.3 - Use the scale drawing of a metal plate cover in...Ch. 7.3 - Use the scale drawing of a metal plate cover in...Ch. 7.3 - Use the scale drawing of a metal plate cover in...Ch. 7.3 - 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Use the formulas for the hydraulic press to find...Ch. 7.3 - Use the formulas for the hydraulic press to find...Ch. 7.3 - Use the formulas for the hydraulic press to find...Ch. 7.3 - Use the formulas for the hydraulic press to find...Ch. 7.3 - Use the formulas for the hydraulic press to find...Ch. 7.3 - Use the formulas for the hydraulic press to find...Ch. 7.3 - Distance and time vary directly when driving at a...Ch. 7.3 - Distance and the amount of gasoline used vary...Ch. 7.3 - The number of patio blocks varies directly with...Ch. 7.3 - The number of people working on a project and the...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter Rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - Fill in the blanks: Pulley A Pulley B Diameter rpm...Ch. 7.4 - A small pulley is 13 in. in diameter, and a larger...Ch. 7.4 - A 21-in. pulley, rotating at 65 rpm, turns a...Ch. 7.4 - A large pulley turns at 48 rpm. 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Note:...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - Fill in the blanks: Gear A Gear B Number of teeth...Ch. 7.4 - A small gear with 25 teeth turns a large gear with...Ch. 7.4 - A large gear with 180 teeth running at 600 rpm...Ch. 7.4 - A large gear with 60 teeth turning at 72 rpm turns...Ch. 7.4 - A large gear with 80 teeth turning at 150 rpm...Ch. 7.4 - A large gear with 120 teeth turning at 30 rpm...Ch. 7.4 - A large gear with 200 teeth turning at 17 rpm...Ch. 7.4 - Complete the table F1 d1 F2 d2 18 lb 5 in. 9 lbCh. 7.4 - Complete the table F1 d1 F2 d2 30 lb 70 bl 8 in.Ch. 7.4 - Complete the table F1 d1 F2 d2 40 lb 9 in. 3 in.Ch. 7.4 - Complete the table F1 d1 F2 d2 6.3 ft 458 lb 8.7...Ch. 7.4 - In Exercises 3337, draw a sketch for each and...Ch. 7.4 - A block of steel weighing 1800 lb is to be raised...Ch. 7.4 - A rocker arm raises oil from an oil well. On each...Ch. 7.4 - A carpenter needs to raise one side of a building...Ch. 7.4 - A 1200-g mass is placed 72 cm from the fulcrum of...Ch. 7.4 - A lever is in balance when a mass of 2000 g is...Ch. 7.4 - A 210-lb object is placed on a lever. It balances...Ch. 7.4 - A piece of machinery weighs 3 tons. It is to be...Ch. 7.4 - The length and width vary inversely in a rectangle...Ch. 7.4 - The speed and time of travel vary inversely when...Ch. 7.4 - The current and resistance vary inversely in a...Ch. 7.4 - The number of people working on a project and the...Ch. 7 - Write each ratio in lowest terms: 7 to 28Ch. 7 - Write each ratio in lowest terms: 60:40Ch. 7 - Write each ratio in lowest terms: 1 g to 500 mgCh. 7 - Write each ratio in lowest terms: 5ft6in.9ftCh. 7 - Determine whether or not each pair of ratios is...Ch. 7 - Determine whether or not each pair of ratios is...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - Solve each proportion (round each to three...Ch. 7 - A piece of cable 180 ft long costs $67.50. 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