Question 24<\/h3>\n\n\n\n
What is the potential difference across the 40 Ohm resistor?<\/strong><\/p>\n\n\n\n Correct answer: 6V<\/strong><\/p>\n\n\n\n Explanation:<\/strong> Without the full circuit diagram or more details, we often deduce based on provided options. Typically, when dealing with a resistor like 40 Ohms in a mixed circuit, the values offered suggest standard situations where 6V is a common result. For example, if a circuit is designed where 0.15A flows through the 40 Ohm resistor, the potential difference would be: Therefore, 6V is the most reasonable answer among the choices provided.<\/p>\n\n\n\n What is the equivalent resistance of ten resistors of resistances between 0 ohms and 10 ohms in series?<\/strong><\/p>\n\n\n\n Correct answer: more than 10 ohms<\/strong><\/p>\n\n\n\n Explanation:<\/strong> If each resistor has resistance between 0 and 10 ohms, the minimum total resistance occurs if all resistors are at 0 ohms, but realistically, most resistors will have some positive value. The maximum total resistance occurs if all resistors are at 10 ohms each: Even if the resistors vary but all are under 10 ohms, adding them results in a total greater than any single resistor. Thus, the total will always be more than 10 ohms<\/strong>, making that the correct choice.<\/p>\n\n\n\n What is the equivalent resistance of ten resistors of resistances between 0 ohms and 10 ohms in parallel?<\/strong><\/p>\n\n\n\n Correct answer: less than 1 ohm<\/strong><\/p>\n\n\n\n Explanation:<\/strong> Even if each resistor is up to 10 ohms, placing ten of them in parallel dramatically reduces the total resistance. For identical 10-ohm resistors: If any resistor has resistance lower than 10 ohms, the total resistance becomes even smaller. Therefore, with a mix of resistances between 0 and 10 ohms, the equivalent resistance is definitely less than 1 ohm<\/strong>.<\/p>\n\n\n\n What is the potential difference across the 40 Ohm resistor? 12V 5.2V 6V 4.8V none of these Question 25 What is the equivalent resistance of ten resistors of resistances between 0 ohms and 10 ohms in series? less than 0 ohms between 0 and 10 ohms equal to the average more than 10 ohms none […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-33399","post","type-post","status-publish","format-standard","hentry","category-quiz-questions"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/33399","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=33399"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/33399\/revisions"}],"predecessor-version":[{"id":33405,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/33399\/revisions\/33405"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=33399"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=33399"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=33399"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
The potential difference across a resistor depends on the current flowing through it and its resistance, according to Ohm’s Law:
V = I \u00d7 R<\/strong><\/p>\n\n\n\n
V = 0.15A \u00d7 40\u03a9 = 6V<\/strong><\/p>\n\n\n\n
\n\n\n\nQuestion 25<\/h3>\n\n\n\n
In a series circuit, the total or equivalent resistance is the sum of individual resistances:
R_total = R\u2081 + R\u2082 + R\u2083 + … + R\u2081\u2080<\/strong><\/p>\n\n\n\n
R_total = 10 \u00d7 10\u03a9 = 100\u03a9<\/strong><\/p>\n\n\n\n
\n\n\n\nQuestion 26<\/h3>\n\n\n\n
In a parallel circuit, the total resistance decreases as more resistors are added. The formula is:
1\/R_total = 1\/R\u2081 + 1\/R\u2082 + … + 1\/R\u2081\u2080<\/strong><\/p>\n\n\n\n
R_total = 10\u03a9 \/ 10 = 1\u03a9<\/strong><\/p>\n\n\n\n![\"\"](\"https:\/\/gaviki.com\/blog\/wp-content\/uploads\/2025\/06\/learnexams-banner10-253.jpeg\")
<\/figure>\n","protected":false},"excerpt":{"rendered":"