Why Is Iron Not Extracted By Electrolysis
Iron is a moderately active element, and its oxides can be reduced using carbon and not by electrolysis. On the... View Article
Iron is a moderately active element, and its oxides can be reduced using carbon and not by electrolysis. On the... View Article
The energy in a battery is stored in the form of chemical potential energy. The stored chemical potential energy of... View Article
The absorption of a wave is when a wave comes into contact with a medium and causes the medium’s molecules... View Article
NPN transistor is used as an amplifier when it is forward biased. The electrons move from emitter to base under... View Article
When the distance between slits within the grating is increased, bands get closer together and eventually merge to form an... View Article
The enthalpy change is often associated with energy changes. The change in enthalpy is negative when the chemical reaction is... View Article
Normally, we calculate the enthalpy change that occurs during a chemical reaction. An enthalpy change is the amount of heat... View Article
Yes, a transistor can amplify an AC signal. A transistor amplifies the small-current input signal into high-current output at the... View Article
The potential difference is what causes the current to flow in a circuit. Multiply the amount of current by the... View Article
For Young’s double-slit experiment, to determine the slit width, we make use of the following equation: \(\begin{array}{l}\frac{\lambda }{d}=\frac{\Delta y}{D}\end{array} \)... View Article
1) 1 2) e1/2 3) e2 4) e3 Solution: (3) e2 y = [f (1 + x) / f (1)]1/x... View Article
1) (–1)K (K – 1)π 2) (–1)K–1 (K – 1) π 3) (–1)K K π 4) (–1)K – 1 K... View Article
1) {–1, 1} 2) {-1, 0} 3) {0, 1} 4) {–1, 0, 1} Solution: (4) {–1, 0, 1} f is... View Article
1) 22 2) 14 3) 18 4) 12 Solution: (1) 22 g (x) = (x2 + 2x + 3) f... View Article
1) R – {0} 2) R – {1} 3) R – {- 1} 4) R – {- 1, 1} Solution:... View Article
1) 20 2) 22 3) 24 4) 26 Solution: (4) 26 P (x) = a + bx + cx2 +... View Article
1) tan (x + y) 2) loge (x + y) 3) -1 4) 1 Solution: (3) -1 sin (x +... View Article
1) yy’’ – 2 (y’)2 + 1 = 0 2) yy’’ + (y’)2 + 1 = 0 3) yy’’ –... View Article
1) onto if f is into 2) one − one if f is one – one 3) continuous if f... View Article
1) 0, 2 2) 1, 3 3) 3, 4 4) None of these Solution: (4) None of these f (x)... View Article