circular
longitudinal
latitudinal
Answer:
longitudinal
Explanation:
b. step-up transformer
c. step-down transformer
d. motor
e. detector
The correct answer of the question is : B) Step-up transformer.
EXPLANATION :
Before coming into any conclusion, first we have to understand the step-up and step-down transformer.
The step-up transformer is the transformer whose transformer ratio is greater than one. It means it will increase the voltage of the source or decrease its current.
On the other hand, the transformer ratio of step-down transformer is less than one. Hence, it will decrease the higher voltage to lower voltage or increase the lower current into higher current of the given source.
As per the question, we want to increase the voltage of the source.
Hence, we have to use step-up transformer.
Answer: The correct answer is electromagnetic wave.
Explanation:
In the electromagnetic wave, both magnetic field and electric field are perpendiculars each other to the direction of the motion of the wave.
Electromagnetic spectrum is the range of frequencies of electromagnetic radiations.
Microwave is an electromagnetic wave. It falls in the range of electromagnetic spectrum between radio and infrared rays. It is a high bandwidth communication. It is used in RADAR and for heating purpose in microwave oven. Its frequency range lies between 300 MHz and 300 GHz.
Therefore, microwave is the type of electromagnetic wave.