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101. How does a battery store electrical energy?
102. What is the significance of energy conservation?
103. What is a microgrid?
104. What is the role of an inverter in a solar power system?
105. What is the principle of hydropower generation?
106. What are the advantages of using renewable energy?
107. How does wind energy work?
108. What is a photovoltaic cell?
109. How does solar power work?
110. What are the sources of renewable energy?
111. What is the Hall effect?
112. What are thermoelectric materials?
113. What are ferromagnetic materials?
114. What are piezoelectric materials?
115. What is permeability in magnetic materials?
116. What is dielectric strength?
117. What are the applications of semiconductor materials?
118. What is the difference between a conductor and a superconductor?
119. What is resistivity, and how does it vary among materials?
120. What are the main types of electrical materials?
121. How do you measure voltage and current in a circuit?
122. What is the Maximum Power Transfer Theorem?
123. What is Superposition Theorem?
124. What is Norton’s Theorem?
125. What is Thevenin’s Theorem?
126. How do you calculate total resistance in a parallel circuit?
127. How do you calculate total resistance in a series circuit?
128. What is a combination circuit?
129. What is a parallel circuit? Explain with an example.
130. What is a series circuit? Explain with an example.
131. What are the safety precautions while working on electrical circuits?
132. What is an electric shock, and how can it be prevented?
133. What is the difference between grounding and bonding?
134. What is an overcurrent protection device?
135. How does a fuse protect an electrical circuit?
136. What is the purpose of an ELCB?
137. What is the purpose of an MCB?
138. What is insulation resistance?
139. What is earthing, and why is it necessary?
140. What are the main electrical hazards?
141. What are the basic types of electrical switches?
142. What is a circuit breaker, and how does it work?
143. What is a fuse, and how does it protect a circuit?
144. What is a relay, and where is it used?
145. What is a transistor, and what is its role in circuits?
146. What are diodes, and how do they work?
147. What is a transformer, and how does it work?
148. What is an inductor, and what is its function?
149. What is a capacitor, and what is its function?
150. What is a resistor, and what is its function?
151. What is the difference between single-phase and three-phase power?
152. What is RMS value, and why is it important?
153. What is the peak value of an AC waveform?
154. What is a sine wave, and why is it used in AC systems?
155. What is the standard frequency of AC power supply in India and the USA?
156. Define frequency and its unit.
157. What is an AC waveform, and how is it represented?
158. What are the advantages of DC over AC?
159. What are the advantages of AC over DC?
160. What is the main difference between AC and DC power?
161. How do you improve power factor in an electrical system?
162. What is the significance of reactive power?
163. What is the efficiency of an electrical system?
164. How does power dissipation occur in a resistor?
165. What are the types of electrical loads (resistive, inductive, capacitive)?
166. What is the power factor? Why is it important?
167. How is electrical power calculated in an AC circuit?
168. How is electrical power calculated in a DC circuit?
169. What is electrical energy, and how is it measured?
170. What is electrical power, and what are its units?
171. How does a potentiometer work?
172. What is the difference between active and passive components?
173. What is an open circuit, and how does it occur?
174. What is a short circuit, and how does it occur?
175. How does temperature affect resistance in a conductor?
176. What is the difference between AC and DC current?
177. What factors affect electrical resistance?
178. Define resistance and mention its unit.
179. Define current and mention its unit?
180. Define voltage and mention its unit?
181. What is a capacitor bank and why is it used?
182. What is the function of choke in tube light?
183. What is difference between system earthing and equipment earthing?
184. What is spirality effect in transmission lines?
185. What is RDOL starter?
186. What is difference between feeder and distributor?
187. What is teaser transformer?
188. What is arc phenomenon in circuit breaker?
189. What is auxiliary transformer?
190. Why single phase induction motor is not self starting?
191. What does Dyn11 mean in a transformer connection?
192. What is Kirchhoff’s Voltage Law (KVL)? Explain with an example.
193. What is the significance of Kirchhoff’s Laws in electrical engineering?
194. How do Kirchhoff’s laws apply in a series circuit?
195. How do Kirchhoff’s laws apply in a parallel circuit?
196. What are node, loop, and mesh in an electrical circuit?
197. How are Kirchhoff’s laws used in circuit analysis?
198. What is Kirchhoff’s Current Law (KCL)? Explain with an example.
199. What is the limitation of Ohm’s Law?
200. How does Ohm’s Law apply to a simple circuit?

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