Question: A small immersion heater can be used in a car to heat a cup of water for coffee or tea. If the heater can heat

A small immersion heater can be used in a car to heat a cup of water for coffee or tea. If the heater can heat 120mL of water from 25oC to 95oC in 8.0min,
(a) Approximately how much current does it draw from the car’s 12-V battery, and
(b) What is its resistance? Assume the manufacturer’s claim of 60% efficiency.

Step by Step Solution

★★★★★

3.38 Rating (173 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

a By conservation of energy and the efficiency claim 60 of the electrical ... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

P-E-E-C (60).docx

120 KBs Word File

Students Have Also Explored These Related Electricity and Magnetism Questions!

A small immersion heater is rated at 350 W. Estimate how long it will take to heat a cup of soup (assume this is 250mL of water) from 20oC to 60oC.

To heat 1 cup of water (250 cm3) to make coffee, you place an electric heating element in the cup. As the water temperature increases from 20C to 65C, the temperature of the heating element remains...

The Wittig reaction (Section 16.10) can be used in the synthesis of aldehydes, for example, (a) How would you prepare CH3OCH == P(C6H5)3? (b) Show with a mechanism how the second reaction produces an...

How were the calculations done? need help writing a lab report pls and thanks. Experiment H-1 Data Sheet Trial Al Pb Item - 2 Units Aluminium lead Type of metal sample Al Pb Mass of metal sample (ms)...

Figure P19.112A shows an immersion heater. It is just a small coil with a resistance R that is used to heat a beverage such as a cup of tea. The heater is connected to a source of emf causing heat to...

These are what my teacher expects for a strategic analysis essay: "Strategic Case Analyses - Case studies provide important windows into the real problems that firms are trying to solve. Note, since...

A 120-V electrical immersion heater is designed to heat 400 mL of water for tea in a glass cup in 3.00 minutes, starting from a water temperature of 20.0 degree C and heating it to 90.0 degree C. The...

Consider an electric immersion heater used to heat a cup of water to make tea. Construct a problem in which you calculate the needed resistance of the heater so that it increases the temperature of...

The Electrical Equivalent of Heat InstructionsA Objective: To confirm Conservation of Energy with a thermal-electrical system Theory: We may not have yet covered the relationship for power in an...

Consider firms in any area of the retail business. Using Miles and Snows Strategy Types, identify the following: (1) a firm that you believe is a prospector; (2) a firm that you believe is an...

A factory produces cardboard boxes. The production sequence consists of three operations: (1) cutting, (2) indenting, and (3) printing. There are three machines in the factory, one for each...

According to Chris Stanley, if a bank allows a fintech to move money and "piggy back" off of the bank's license, then the bank must _ _ _ _ _ _ . Question 1 4 options: complete Form D 5 1 and file it...

At the balance sheet date, a business owes a five-year mortgage note payable of $480,000, the terms of which provide for monthly payments of $8,000. Explain how the liability should be classified on...

Cranwell Company's inventory records for a particular development program show the following at May 31: May 1 Beginning inventoryl ........................... 6 units $150 = $ 900 15 Purchase...

Financial statement data for years ending December 31 for DePuy Company are shown below. a. Determine the fixed asset turnover ratio for 2014 and 2013. b. Does the change in the fixed asset turnover...

What is a queuing problem? What are the components in a queuing system?

Exhibit contains the income statements and balance sheets of The Hershey Company for the years ended December 31, 2011, and December 31, 2010. Hershey is a manufacturer of chocolate and sugar...

Foraging bees often move in straight lines away from and toward their hives. Suppose a bee starts at its hive and flies 500 m due east, then flies 400 m west, then 700 m east. How far is the bee from...

Rust Bucket Motor Credit Corporation (RBMCC), a subsidiary of Rust Bucket Motor, offered some securities for sale to the public on March 28, 2008. Under the terms of the deal, RBMCC promised to repay...

1. The Global Business Travel Association reported the domestic airfare for business travel for the current year and the previous year. Below is a sample of 12 flights with their domestic airfares...

The next dividend payment by Wyatt, Inc., will be $3.00 per share. The dividends are anticipated to maintain a growth rate of 5.75 percent, forever. Assume the stock currently sells for $49.60 per...