Virus generates electricity when squeezed

The video tutorial explains how charge differences are established to create electric current flow along a virus. Researchers enhanced this by adding negatively charged amino acids, increasing the charge difference and electricity generated. Sheets of engineered virus are used to construct a generator that produces current and potential when pressed. This technology could potentially power small devices like LCD screens and may be used in the future to charge phones or power pacemakers using body movements.

What is the role of negatively charged amino acids in the engineered virus?

• To decrease the charge difference

• To increase the charge difference

• To stabilize the virus structure

• To neutralize the charge

How is the generator constructed using the engineered virus?

• By embedding the virus in a silicon chip

• By layering the virus between copper electrodes

• By sandwiching the virus between gold-plated electrodes

• By mixing the virus with conductive polymers

What is the maximum current produced by the generator when pressed?

• Six amperes

• Six nanoamperes

• Six milliamperes

• Six microamperes

What is the potential voltage output of the generator compared to a AAA battery?

• Half of a AAA battery

• One-fourth of a AAA battery

• Twice a AAA battery

• Equal to a AAA battery

Which of the following is a potential future application of this technology?

• Operating a desktop computer

• Running a household refrigerator

• Charging a phone while jogging

• Powering electric cars