Electrical Engg. By Ashish sir

⭕ Attention quiz schedule Date :22.04.20 Non tech quiz : english gk+ grammar + computer Time : @t 11.00 am At 12.30 pm : test on previous year question papers of JE/ AE exam No.Of questions..... .30 At 9.00 pm. : marathi grammar quiz No.of questions : 30 📌All questions are important in next quiz 📌Don't miss the quiz Shaikh Najiya @eeletsrock1021 https://t.me/eeletsrock1021 💐💐💐💐💐💐💐💐💐💐

Listen everyone .... Aaj ka quiz bahut important hai..... Attend kro sabhi ..... Previous year exam k questions hai sabhi. ...... Don't miss today's quiz

⭕ Attention quiz schedule Date :22.04.20 Non tech quiz : english gk+ grammar + computer Time : @t 11.00 am At 12.30 pm : quiz test of electrical all mix topic No.Of questions..... .30 At 9.00 pm. : marathi grammar quiz No.of questions : 30 📌All questions are important in next quiz 📌Don't miss the quiz Shaikh Najiya @eeletsrock1021 https://t.me/eeletsrock1021 💐💐💐💐💐💐💐💐💐💐

Electrical students technical hi nahi.....Non technical me bhi top kar sakte u can prove this. 👍👍👍👍

Jo electrical k is group k student upsc group me...Ans.de rhe...Top me aa rhe...Aap sabhi ko congrats

🇮🇳OUR MISSION UPSC /PCS/SSC/BANKING 🎯🎯🇮🇳 🌺🌿QUIZ ՏCHEDULE🌺🌿 🔰 6 AM TO 7 AM👉 🔰 8 AM👉 [BOT QUIZ] 🔰9 AM👉 CUREENT GK [BOT QUIZ] after 14 april 🔰10 AM👉 [BOT QUIZ] 🔰11 AM👉 POLTICAL [BOT QUIZ] 🔰12 PM👉 KAPIL SIR [SCIENCE] 🔰1 PM👉 HISTORY [BOT QUIZ] 🔰2 PM👉 GEOGRAPHY [BOT QUIZ] 🔰3 PM👉 MUKESH SIR [ GK & GS] MIX QUIZ 🔰4 PM👉 BOT QUIZ [SCIENCE] 🔰 5 PM👉 SATENDRA [HINDI] 🔰6 PM👉 AKKU MAM RASONING [BOT QUIZ] 🔰7 PM👉 ENGLISH [BOT QUIZ] 🔰8 PM👉 BHANU PANDAY [MATH] 🔰9 PM👉QUIZ BOT 🔰10 PM👉 MUKESH SIR QUIZ 🔰11 PM👉 100 SSC QUESTION QUIZ] 🇮🇳OUR MISSION UPSC /PCS/SSC/BANKING 🎯🎯🇮🇳 👉 https://t.me/dreemupscashish PDF GROUP 👉 https://t.me/upsctoppermission2021 (group में जुड़ते ही आप सभी से विनती है की 50 अभ्यर्थी को अवश्य add कर

⭕ Attention quiz schedule Date :21.04.20 At 12.30 pm : quiz test of electrical all mix topic No.Of questions..... .30 At 9.00 pm. : marathi grammar quiz No.of questions : 30 📌All questions are important in next quiz 📌Don't miss the quiz Shaikh Najiya @eeletsrock1021 https://t.me/eeletsrock1021 💐💐💐💐💐💐💐💐💐💐

In this group abhi Gk english ..And..English grammar ka quiz le rhi hun...Join this group now

OUR MISSION UPSC /PCS/SSC/BANKING 🎯🎯👍 🔰 OUR MISSION UPSC /PCS/SSC/BANKING 🎯🎯🔰 The Group for The Preparation 👉UPSC 👉Mains & Prelims 👉SSC RRB IBPS BANKING 👉ALL TIME QUIZ OFFICIAL TELLIGRAM CONTACT NUMBERS FOR ANY QUERIE↘️↘️↘️https://t.me/Inqlabjindavad Ashish /danger https://t.me/dreemupscashish

⭕ Attention quiz schedule Date :21.04.20 At 12.30 pm : quiz test of electrical all mix topic No.Of questions..... .30 All questions are important join quiz Fast Electrical technical quiz 🔰 OUR MISSION TECHNICAL EXAM 🎯🎯🔰 The Group for The Preparation 👉SSC JE 👉MSEB : AE & JE 👉SSC RRB JE EXAM 👉Daily quiz : 12.30 pm Shaikh Najiya @eeletsrock21{Sticker Maker} https://t.me/eeletsrock21 💐💐💐💐💐💐💐💐💐💐

If the power factor is high, then the consumer maximum demands 1. Increase 2. Decrease✔️ 3. Becomes zero 4. Remains Constant Explanation Kva=kw/cos$ Now considering the above equation, for a given requirement of kW, the value of kVA reduces if we have good power factor. Let us understand with an example, Consider a case wherein we need 100 kW as output. Now Case1: for a power factor of 0.8 We would require 120kva for fulfilling the required demand. (Calculated as per equation is written above) Case2: power factor of 1 (unity) Here, the value of kVA required is 100 kVA. Which is less than the previous case. This indicates that the kVA demand decreases if power factor of my equipment increases.

. For painful shock what is the range of electric shock current at 50 Hertz? 1. 0-1 mA 2. 3-5 mA✔️ 3. 0-3 mA 4. 5- 10 mA Explanation • The damage caused by electric shock depends on the current flowing through the body — 1 mA can be felt; 5 mA is painful. • Above 15 mA, a person loses muscle control, and 70 mA can be fatal.” • The amount of damage done by the electric shock depends not only on the magnitude of the current, but it also on which portions of the body that the electric current is flowing through. The reason for this is that different parts of the body have different resistances, which can lead to an increase in current

A 10 pole 25 Hz alternator is directly coupled to and is driven by 60 Hz synchronous motor then the number of poles in a synchronous motor is? 1. 24 poles ✔️ 2. 48 poles 3. 12 Poles 4. None of the above Explanation Number of poles of alternator Pa = 10 F = 25 Hz (alternator) F = 60 Hz (motor) Then the number of poles of motor Pm =? Since synchronous motor is directly coupled hence Synchronous speed of an alternator = Synchronous speed of the motor (120 x 25)/10 = (120 x 60)/ Pm Pm = 24

In a pure inductive circuit if the supply frequency is reduced to half the current will? 1. Be four times as high 2. Be doubled 3. Be reduced to half 4. Be reduced to one fourth Explanation The amplitude of the current in a pure inductive circuit is given by Im = Vm/ωl And ω = 2πf Im = Vm/2πfl Im ∝ 1/f Hence, when the frequency is halved, the amplitude of the current is doubled in a pure inductive circuit.

How much energy is stored in a 100 mH inductance when a current of 1A is flowing through it? 1. 5.0 J 2. 0.05 3. 0.5 J 4. 0.005 J Explanation The energy stored in the magnetic field of an inductor can be expressed as E = 1/2 L I2 where E = energy stored (joules, J) L = inductance (henrys, H) I = current (amps, A) 1/2(100 x 10-3 x 1) 50 x 10-3 J 0.05 J

Resistor values can be known by the color band. 0 black 1 brown 2 red 3 orange 4 yellow 5 green 6 blue 7 violet 8 grey 9 white First color = digit Second color=digit Third color= power of ten Fourth color =tolerance Now in the given question 50 × 100 ± 2% 5 = Green 0 = Black 100 = Black ± 2% = Red

What will be the color-coding of a resistor when the resistance of the resistor is 50 + 2% ohms? 1. Green-Black-Brown-Red 2. Green-Black-Black-Brown 3. Yellow-Brown-Black-Red 4. Green-Black-Black-Red✓