2 A student is investigating the resistance of a resistor.The circuit is shown in Fig. 2.1. A B and C D are lengths of resistance wire.R power supply◆○o wandering家lead Dc Fig.2.1(a)The student connects the wandering lead to point B in the circuit. The readings of potential differen...
Answer to: What is the resistance of a resistor if the potential difference across the resistor is 5.7 V when a current of 9.9 A flows...
The voltage across a resistor in a circuit is 12 volts and the current through it is 2 amperes. What is the resistance of the resistor? A. 6 ohms B. 8 ohms C. 10 ohms D. 14 ohms 相关知识点: 试题来源: 解析 A。解析:根据欧姆定律,电阻等于电压除以电流,12 伏除以 2 安等于 6 欧姆。
View Solution A 2-A current flows through a resistor when a potential difference of 20 V is applied across it. The resistance of the resistor is View Solution Doubtnut is No.1 Study App and Learning App with Instant Video Solutions for NCERT Class 6, Class 7, Class 8, Class 9, Class ...
- make the period of connection of battery and the resistor as short as possible - use a reasonable value of resistance, 10ohm should be sufficient for all kind of test. Step 1: Double Confirm the Resistance of the Resistor Even thought the value of the resistance is printed, you still ...
百度试题 结果1 题目28 Which equation can be used to calculate the resistance R of a resistor?$$ A V = I \div R B I = V \times R C R = V \times I D V = I \times R $$ 相关知识点: 试题来源: 解析 D 反馈 收藏
Answer to: A certain wire has a resistance of 120 O. What is the resistance of a second wire, made of the same material, that is 1/4 as long and...
5 (a) The variation with temperature of the resistance Rr of a thermistor is shown in Fig. 5.1.4.03.0RT/K2.0-1.0005 10 115 2025temperature/C Fig. 5.1The thermistor is connected in series with a resistor R as shown in the circuit in Fig. 5.2.R V9.00V Fig. 5.2The battery has e.m...
In order to make the method technically beneficial, the resistor (20) in the layered composite is divided into a main resistor (21) with a resistance lower than the specified value, and a plurality of trimming resistors (22) serially connected to the main resistor (21) and each having its...
Define The Resistor. The Resistor synonyms, The Resistor pronunciation, The Resistor translation, English dictionary definition of The Resistor. n. A device used to control current in an electric circuit by providing resistance. American Heritage® Dic