The resistance of an ammeter is 13Ω and its scale is graduated for a current up to 100A . After an additional shunt has been connected to this ammeter, it becomes possible to measure currents up to 750A by this meter. The value of the shunt resistance is: (A) 20Ω (B) 2Ω (C) 0.2Ω (D) 2kΩ

What type of questions asked from the lesson of magnetic effect of electric current 

Wavelength of green light is

A) 400-450 nm

B) 500-550 nm

C) 660-720 nm

D) 720-800 nm

What is the difference between anaerobic & aerobic respiration? Name some organism that uses the aerobic mode of respiration?

What are the main components of our environment? Explain each of them briefly.

What are examples of hydrotropism plants?