An Electric Heater Is Constructed by Applying a Potential Difference $\Omega$

question 103

Multiple Choice

An electric heater is constructed by applying a potential difference of 110 V across a wire with a resistance of 5.0 $\Omega$ .What is the power rating of the heater?

• A)2.0 kW
• B)2.4 kW
• C)1.7 kW
• D)1.5 kW
• E)60 kW

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Definitions:

Promoter Regions

Specific DNA sequences where RNA polymerase binds to initiate transcription of genes.

Operator

In genetics, a segment of DNA to which a repressor binds, controlling the expression of genes; in mathematics, a function or symbol that represents a function from a set of numbers.

Polyadenylation

That part of eukaryotic mRNA processing in which multiple adenine-containing nucleotides (a poly-A tail) are added to the 3' end of the molecule.

Prokaryotic mRNA

Messenger RNA found in prokaryotic organisms that is used to carry genetic information from DNA for protein synthesis.