NUMERICAL RESPONSE QUESTIONS | Ch 19 ELECTROMAGNETISM | Phy 10 | Lec 12 | NBF | FBISE
NUMERICAL RESPONSE QUESTIONS | Ch 19 ELECTROMAGNETISM | Physics 10 | Lecture 12 | National Book Foundation| Federal board In this *Class 10 Physics Lecture (Ch 19 – Electromagnetism)* from *National Book Foundation (NBF)* for *FBISE**, we solve **important numerical response questions* related to **Transformers, Voltage, and Current calculations**. These *step-up and step-down transformer numericals* cover turn ratio, voltage transformation, and power relations using the transformer equation. Watch the complete lecture for full solutions and explanations with proper steps and formulas. ⏱️ *Timestamps:* 00:00:00 — Q1: Step-up transformer with turn ratio 1:100 and input voltage 20V. Find secondary voltage. 00:05:08 — Q2: Step-down transformer with turns ratio 100:1 and input voltage 170V (AC). Find secondary voltage. 00:07:14 — Q3: Transformer draws 0.5A input current and gives 100W, 8.3A output. Find input voltage, turns ratio, and transformer type. 00:14:27 — Q4: Step-down transformer with input current 0.050A. Find output current and power (100% efficiency assumed). 00:18:45 — Q5: Adapter transformer steps up 115V to 230V for a hair dryer (5A). Find input current assuming 100% efficiency. 💡 *Key Topics Covered:* Transformer Numericals (Step-up & Step-down) Turn Ratio Formula Transformer Voltage Relation (Vp/Vs = Np/Ns) Power and Current Calculations Efficiency of Transformer Real-life Transformer Applications 📘 *Short Summary:* This lecture includes *numerical response questions* on *step-up and step-down transformers* from **Physics Class 10 Chapter 19 – Electromagnetism**. Students will learn to apply the formulas for *turns ratio**, **voltage transformation**, and **power relations* in transformers. The video also explains how to identify transformer type and calculate *input/output voltage, current, and power* in ideal conditions. 📈 *Optimized Keywords:* Transformer numericals Physics 10, Step-up transformer calculation, Step-down transformer question, Turns ratio formula, Transformer power relation, Physics Class 10 Chapter 19, Electromagnetism numericals, FBISE Physics numericals, NBF Physics, Transformer efficiency, Transformer current and voltage, Transformer formula explained, Class 10 Physics problems 📢 *Hashtags (500 characters):* #Physics10 #Electromagnetism #TransformerNumericals #StepUpTransformer #StepDownTransformer #FBISE #NBF #NationalBookFoundation #PhysicsLecture #TransformerFormula #VoltageCalculation #PowerCalculation #PhysicsQuestions #C10Physics #FBISEPhysics #PhysicsMatric #TransformerConcepts #NumericalResponse #PhysicsNumericals #EducationalVideo #PhysicsLearning #ScienceLecture #TransformerEfficiency ] Transformer numericals, Physics 10, Step-up transformer, Step-down transformer, Transformer turn ratio, Transformer formula, Voltage and current relation, Transformer efficiency, Electromagnetism Chapter 19, NBF Physics, FBISE Physics lecture, Physics 10 numericals, Transformer power formula, Step-up and step-down difference, Class 10 Physics transformer, Transformer examples, Transformer solved questions, Transformer explanation, Physics 10 NBF, Federal board phy
