A. 105 ohm metre
B. 106 ohm metre
C. 107 ohm metre
D. 108 ohm metre
A. Protons
B. Electrons
C. Metal atoms
D. Metal ions
Electric current in a solid metal conductor is caused by the movement of electric charge. An electric current is the flow of electric charge. An electron current, the flow of electrons, contributes to an electric current since the electron ‘carries’ negative electric charge.
WA. 180°
B. 0°
C. 90°
D. 45°
A. same
B. different
C. zero
D. different with refractive index of core higher than cladding
A. equal to 45 deg
B. equal to 90 deg
C. equal to each other
D. none of the above
A. f2 + f1
B. f2 – f1
C. f1f2/f2+f1
D. f1f2/f1-f2
A. sugar
B. tartaric acid
C. water
D. sodium chlorate