A positive electric charge:
Attracts other positive charge
Repels other positive charge
Attract a neutral charge
Repels a neutral charge
Two uncharged objects a and b are rubbed against each other. When object b is placed near a negatively charged object c, the two objects repel each other. Which of these statements is true about object a:
Remains uncharged
Becomes positively charged
Becomes negatively charged
Unpredictable
In compound microscope, the objective have focal length than eye-piece:
Smaller
Larger
Equal
Equal and larger
Optical fibres works on the principle of:
Reflection
Refraction
Total internal reflection
Diffraction
In C.R.O grid is always connected with potential:
Negative
Positive
High positive
Zero positive
In NOT gate number of input terminals is/are:
One micro coulomb charge is equal to:
10-3c
103c
106c
10-6c
